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102122221012 = 2273647222179
BaseRepresentation
bin101111100011011110…
…1010110110111010100
3100202121001222100011221
41133012331112313110
53133121242033022
6114525253340124
710243453361530
oct1370675266724
9322531870157
10102122221012
113a345371169
1217960637644
1398263aa916
144d2ac52bc0
1529ca6e0cc7
hex17c6f56dd4

102122221012 has 12 divisors (see below), whose sum is σ = 204244442080. Its totient is φ = 43766666136.

The previous prime is 102122220913. The next prime is 102122221049. The reversal of 102122221012 is 210122221201.

It is a happy number.

102122221012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

102122221012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823611062 + ... + 1823611117.

Almost surely, 2102122221012 is an apocalyptic number.

It is an amenable number.

102122221012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

102122221012 is a wasteful number, since it uses less digits than its factorization.

102122221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647222190 (or 3647222188 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102122221012 its reverse (210122221201), we get a palindrome (312244442213).

The spelling of 102122221012 in words is "one hundred two billion, one hundred twenty-two million, two hundred twenty-one thousand, twelve".

Divisors: 1 2 4 7 14 28 3647222179 7294444358 14588888716 25530555253 51061110506 102122221012