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102012122012 = 22220671155709
BaseRepresentation
bin101111100000001100…
…1010111001110011100
3100202022101210201202012
41133000121113032130
53132410100401022
6114510321450352
710240645505303
oct1370031271634
9322271721665
10102012122012
113a299202159
121792b7a09b8
13980963c498
144d1a39343a
1529c0be3de2
hex17c065739c

102012122012 has 12 divisors (see below), whose sum is σ = 178529457960. Its totient is φ = 51003705456.

The previous prime is 102012121999. The next prime is 102012122041. The reversal of 102012122012 is 210221210201.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 489587 + ... + 666122.

It is an arithmetic number, because the mean of its divisors is an integer number (14877454830).

Almost surely, 2102012122012 is an apocalyptic number.

It is an amenable number.

102012122012 is a deficient number, since it is larger than the sum of its proper divisors (76517335948).

102012122012 is a wasteful number, since it uses less digits than its factorization.

102012122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177780 (or 1177778 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102012122012 its reverse (210221210201), we get a palindrome (312233332213).

The spelling of 102012122012 in words is "one hundred two billion, twelve million, one hundred twenty-two thousand, twelve".

Divisors: 1 2 4 22067 44134 88268 1155709 2311418 4622836 25503030503 51006061006 102012122012