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102210222212 = 22717920393101
BaseRepresentation
bin101111100110000110…
…1000011100010000100
3100202211012120021010122
41133030031003202010
53133311304102322
6114542115441112
710245602361020
oct1371415034204
9322735507118
10102210222212
113a39000782a
1217985bb6198
13983b6acb37
144d387dd380
1529d32c5442
hex17cc343884

102210222212 has 24 divisors (see below), whose sum is σ = 205562468160. Its totient is φ = 43559661600.

The previous prime is 102210222203. The next prime is 102210222223. The reversal of 102210222212 is 212222012201.

It is a happy number.

102210222212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10191539 + ... + 10201562.

It is an arithmetic number, because the mean of its divisors is an integer number (8565102840).

Almost surely, 2102210222212 is an apocalyptic number.

It is an amenable number.

102210222212 is an abundant number, since it is smaller than the sum of its proper divisors (103352245948).

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

102210222212 is a wasteful number, since it uses less digits than its factorization.

102210222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20393291 (or 20393289 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102210222212 its reverse (212222012201), we get a palindrome (314432234413).

The spelling of 102210222212 in words is "one hundred two billion, two hundred ten million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 179 358 716 1253 2506 5012 20393101 40786202 81572404 142751707 285503414 571006828 3650365079 7300730158 14601460316 25552555553 51105111106 102210222212