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100220211012 = 223191637268517
BaseRepresentation
bin101110101010110010…
…1110000111101000100
3100120200112000012222010
41131111211300331010
53120222333223022
6114012430534220
710145356511055
oct1352545607504
9316615005863
10100220211012
1139559772979
121750b667370
1395b232220c
144bca3c472c
15291873750c
hex1755970f44

100220211012 has 48 divisors (see below), whose sum is σ = 246306191040. Its totient is φ = 31629036672.

The previous prime is 100220210999. The next prime is 100220211041. The reversal of 100220211012 is 210112022001.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 15 ways as a sum of consecutive naturals, for example, 238978 + ... + 507494.

It is an arithmetic number, because the mean of its divisors is an integer number (5131378980).

Almost surely, 2100220211012 is an apocalyptic number.

100220211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100220211012 is an abundant number, since it is smaller than the sum of its proper divisors (146085980028).

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

100220211012 is a wasteful number, since it uses less digits than its factorization.

100220211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270180 (or 270178 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100220211012 its reverse (210112022001), we get a palindrome (310332233013).

The spelling of 100220211012 in words is "one hundred billion, two hundred twenty million, two hundred eleven thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 1637 3274 4911 6548 9822 19644 31103 62206 93309 124412 186618 268517 373236 537034 805551 1074068 1611102 3222204 5101823 10203646 15305469 20407292 30610938 61221876 439562329 879124658 1318686987 1758249316 2637373974 5274747948 8351684251 16703368502 25055052753 33406737004 50110105506 100220211012