Base | Representation |
---|---|
bin | 110111111110110111… |
… | …1001001011100111000 |
3 | 102111022102020021022020 |
4 | 1233331233021130320 |
5 | 3432203101041440 |
6 | 131121231354440 |
7 | 11454122410104 |
oct | 1577557113470 |
9 | 374272207266 |
10 | 120221112120 |
11 | 46a92757a0a |
12 | 1b371982a20 |
13 | b44bc54045 |
14 | 5b66862904 |
15 | 31d95d03d0 |
hex | 1bfdbc9738 |
120221112120 has 64 divisors (see below), whose sum is σ = 361571951520. Its totient is φ = 31978197504.
The previous prime is 120221112113. The next prime is 120221112169. The reversal of 120221112120 is 21211122021.
It is a super-2 number, since 2×1202211121202 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 120221112120.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214127 + ... + 1309406.
Almost surely, 2120221112120 is an apocalyptic number.
120221112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
120221112120 is an abundant number, since it is smaller than the sum of its proper divisors (241350839400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120221112120 is a wasteful number, since it uses less digits than its factorization.
120221112120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2523944 (or 2523940 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 120221112120 its reverse (21211122021), we get a palindrome (141432234141).
Subtracting from 120221112120 its reverse (21211122021), we obtain a palindrome (99009990099).
The spelling of 120221112120 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty".
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