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120221112120 = 23353972523533
BaseRepresentation
bin110111111110110111…
…1001001011100111000
3102111022102020021022020
41233331233021130320
53432203101041440
6131121231354440
711454122410104
oct1577557113470
9374272207266
10120221112120
1146a92757a0a
121b371982a20
13b44bc54045
145b66862904
1531d95d03d0
hex1bfdbc9738

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".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 397 794 1191 1588 1985 2382 3176 3970 4764 5955 7940 9528 11910 15880 23820 47640 2523533 5047066 7570599 10094132 12617665 15141198 20188264 25235330 30282396 37852995 50470660 60564792 75705990 100941320 151411980 302823960 1001842601 2003685202 3005527803 4007370404 5009213005 6011055606 8014740808 10018426010 12022111212 15027639015 20036852020 24044222424 30055278030 40073704040 60110556060 120221112120