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120013101220 = 225791031933821
BaseRepresentation
bin110111111000101010…
…1101001100010100100
3102110202220211012222211
41233301111221202210
53431241323214340
6131044441133204
711446015346245
oct1576125514244
9373686735884
10120013101220
11469962a3281
121b31418a204
13b417b2367c
145b46d96ccc
1531c61e25ea
hex1bf15698a4

120013101220 has 96 divisors (see below), whose sum is σ = 259098577920. Its totient is φ = 46681989120.

The previous prime is 120013101217. The next prime is 120013101337. The reversal of 120013101220 is 22101310021.

It is a self number, because there is not a number n which added to its sum of digits gives 120013101220.

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 31 ways as a sum of consecutive naturals, for example, 31406910 + ... + 31410730.

It is an arithmetic number, because the mean of its divisors is an integer number (2698943520).

Almost surely, 2120013101220 is an apocalyptic number.

120013101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120013101220 is an abundant number, since it is smaller than the sum of its proper divisors (139085476700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120013101220 is a wasteful number, since it uses less digits than its factorization.

120013101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205 (or 4203 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120013101220 its reverse (22101310021), we get a palindrome (142114411241).

The spelling of 120013101220 in words is "one hundred twenty billion, thirteen million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 79 103 158 193 206 316 386 395 412 515 772 790 965 1030 1580 1930 2060 3821 3860 7642 8137 15247 15284 16274 19105 19879 30494 32548 38210 39758 40685 60988 76235 76420 79516 81370 99395 152470 162740 198790 301859 304940 393563 397580 603718 737453 787126 1207436 1474906 1509295 1570441 1574252 1967815 2949812 3018590 3140882 3687265 3935630 6037180 6281764 7374530 7852205 7871260 14749060 15704410 31091477 31408820 58258787 62182954 75957659 116517574 124365908 151915318 155457385 233035148 291293935 303830636 310914770 379788295 582587870 621829540 759576590 1165175740 1519153180 6000655061 12001310122 24002620244 30003275305 60006550610 120013101220