| Base | Representation |
|---|---|
| bin | 1011101101100111000… |
| … | …1111001010001010000 |
| 3 | 201020101112010110101200 |
| 4 | 2323121301321101100 |
| 5 | 11244100342343440 |
| 6 | 232235030431200 |
| 7 | 20352321513021 |
| oct | 2733161712120 |
| 9 | 636345113350 |
| 10 | 201222231120 |
| 11 | 78379781569 |
| 12 | 32bb8b02500 |
| 13 | 15c8a5c8461 |
| 14 | 9a4c55ac48 |
| 15 | 537a901c30 |
| hex | 2ed9c79450 |
201222231120 has 60 divisors (see below), whose sum is σ = 675771328596. Its totient is φ = 53659261440.
The previous prime is 201222231109. The next prime is 201222231137. The reversal of 201222231120 is 21132222102.
201222231120 is a `hidden beast` number, since 201 + 222 + 231 + 12 + 0 = 666.
201222231120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 35716464144 + 165505766976 = 188988^2 + 406824^2 .
It is a tau number, because it is divible by the number of its divisors (60).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 201222231093 and 201222231102.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139736941 + ... + 139738380.
Almost surely, 2201222231120 is an apocalyptic number.
201222231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
201222231120 is an abundant number, since it is smaller than the sum of its proper divisors (474549097476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
201222231120 is a wasteful number, since it uses less digits than its factorization.
201222231120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 279475340 (or 279475331 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 201222231120 its reverse (21132222102), we get a palindrome (222354453222).
The spelling of 201222231120 in words is "two hundred one billion, two hundred twenty-two million, two hundred thirty-one thousand, one hundred twenty".
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