1221
Number 1221 is an odd four-digits composite number and natural number following 1220 and preceding 1222.
| Nominal | 1221 |
| Cardinal | one thousand two hundred twenty-one |
Cardinal one thousand two hundred twenty-one |
| Ordinal | 1,221st |
| Number of digits | 4 |
| Sum of digits | 6 |
| Product of digits | 4 |
| Number parity | Odd |
Calculation was done in 0.0000381470 seconds
| Prime factorization | 3 x 11 x 37 |
| Prime factors | 3, 11, 37 |
| Number of distinct prime factors ω(n) | 3 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 51 |
| Product of prime factors | 1221 |
Calculation was done in 0.0000100136 seconds
| List of proper divisors | 1, 3, 11, 33, 37, 111, 407 |
| List of all dividers | 1, 3, 11, 33, 37, 111, 407, 1221 |
| Number of divisors d(n) | 8 |
| Sum of all divisors σ(n) | 1824 |
| Aliquot sum | 603 |
| 1221 is a deficient number , since it is larger than the sum of its proper divisors (603). Its deficiency is 618. |
Calculation was done in 0.0000162125 seconds
| Is 1221 a prime number? | No |
| Is 1221 a semiprime number? | No |
| Is 1221 a Chen prime number? | No |
| Is 1221 a Mersenne prime number? | No |
Calculation was done in 0.0001800060 seconds
| Is 1221 a Catalan number? | No |
| Is 1221 a Fibonacci number? | No |
| Is 1221 a Idoneal number? | No |
Calculation was done in 0.0000050068 seconds
| 1221 is a Happy number |
| 1221 is not a Humble number |
| 1221 is not a Münchhausen number |
| 1221 is not a Perfect number |
| 1221 is not a Perfect square |
| 1221 is a Palindrome |
Calculation was done in 0.0009639263 seconds
| Base | System | Value |
|---|
| 2 | Binary | 100110001012 |
| 3 | Ternary | 12000203 |
| 4 | Quaternary | 1030114 |
| 5 | Quinary | 143415 |
| 6 | Senary | 53536 |
| 7 | Septenary | 33637 |
| 8 | Octal | 23058 |
| 9 | Nonary | 16069 |
| 10 | Decimal | 1221 |
| 12 | Duodecimal | 85912 |
| 16 | Hexadecimal | 4c516 |
| 20 | Vigesimal | 31120 |
| 36 | Base36 | xx36 |
| 60 | Sexagesimal | KL60 |
Calculation was done in 0.0000181198 seconds
| Square of 1221 (n2) | 1490841 |
| Cube of 1221 (n3) | 1820316861 |
| Square root of 1221 | 34.942810419312 |
| Natural Logarithm (ln) of 1221 | 7.1074254741107 |
| Decimal Logarithm (log) of 1221 | 3.0867156639449 |
Calculation was done in 0.0000040531 seconds
| Sine of 1221 | 0.88174196224895 |
| Cosecant of 1221 | 1.1341186456063 |
| Cosine of 1221 | -0.47173203411403 |
| Secant of 1221 | -2.1198475568404 |
| Tangent of 1221 | -1.8691585444371 |
| Cotangent of 1221 | -0.5350000956185 |
Calculation was done in 0.0000090599 seconds
Is 1221 an Even Number?
No
Is 1221 an Odd Number?
Yes, the number 1221 is an odd number.
Total number of all odd numbers from 1 to 1221 is
611Sum of all the odd numbers from 1 to 1221 are
373321The sum of all odd numbers is a perfect square: 373321 = 611
An odd number is any integer (a whole number) that cannot be divided by 2 evenly. Odd numbers are the opposite of even numbers.Previous odd number is
1219
Calculation was done in 0.0000059605 seconds
| The spelling of 1221 in words is "one thousand two hundred twenty-one", meaning that: |
| 1221 is not an aban number (as it contains the letter a) |
| 1221 is not an eban number (as it contains the letter e) |
| 1221 is an iban number (a number without the letter i) |
| 1221 is not an oban number (as it contains the letter o) |
| 1221 is not a tban number (as it contains the letter t) |
| 1221 is not an uban number (as it contains the letter u) |
Calculation was done in 0.0000021458 seconds
| Bengali numerals | ১২২১ |
| Eastern Arabic numerals | ١٬٢٢١ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓆼𓍣𓎇𓏺 |
| Khmer numerals | ១២២១ |
| Japanese numerals | 千二百二十一 |
| Roman numerals | MCCXXI |
| Thai numerals | ๑๒๒๑ |
Calculation was done in 0.0000779629 seconds
| Arabic | ألف و مائتان و واحد و عشرون |
| Croatian | tisuću dvjesto dvadeset i jedan |
| Czech | jedna tisíc dvě stě dvacet jeden |
| Danish | et tusind to hundrede en og tyve |
| Dutch | duizend tweehonderdéénentwintig |
| Estonian | akpe ɖeka alafa eve blaeve vɔ ɖekɛ |
| Faroese | eitt tusin og tveyhundraðogtjúgoein |
| Filipino | isáng libó’t dalawáng daán at dalawáng pû’t isá |
| Finnish | tuhatkaksisataakaksikymmentäyksi |
| French | mille deux cent vingt et un |
| Greek | χίλια διακόσια είκοσι ένα |
| German | eintausendzweihunderteinundzwanzig |
| Hebrew | אלף מאתיים עשרים ואחת |
| Hindi | एक हज़ार दो सौ इक्कीस |
| Hungarian | ezerkétszázhuszonegy |
| Icelandic | eitt þúsund og tvöhundrað og tuttugu og einn |
| Indonesian | seribu dua ratus dua puluh satu |
| Italian | milleduecentoventuno |
| Japanese | 千二百二十一 |
| Korean | 천이백이십일 |
| Latvian | tūkstoš divsimt divdesmit viens |
| Lithuanian | tūkstantis du šimtai dvidešimt vienas |
| Norwegian | tusen to hundre og tjueén |
| Persian | یک هزار و دویست و بیست و یک |
| Polish | tysiąc dwieście dwadzieścia jeden |
| Portuguese | mil duzentos e vinte e um |
| Romanian | una mie două sute douăzeci şi unu |
| Russian | одна тысяча двести двадцать один |
| Serbian | једна хиљаду двеста двадесет и један |
| Slovak | jedna tisíc dvesto dvadsaťjeden |
| Slovene | tisuću dvjesto dvaset ena |
| Spanish | mil doscientos veintiuno |
| Swahili | elfu moja, mia mbili na ishirini na moja |
| Swedish | entusentvåhundratjugoen |
| Thai | หนึ่งพันสองร้อยยี่สิบเอ็ด |
| Turkish | bin iki yüz yirmi bir |
| Ukrainian | одна тисяча двісті двадцять один |
| Vietnamese | một nghìn hai trăm hai mươi mốt |
Calculation was done in 0.0137879848 seconds
| Number 1221 reversed | 1221 |
| Unicode Character | U+04C5 | Ӆ |
| Unix Timestamp | Thu, 01 Jan 1970 00:20:21 +0000 |
Calculation was done in 0.0000238419 seconds
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