102112112212 has 144 divisors (see below), whose sum is σ = 214112606400. Its totient is φ = 42245952000.

The previous prime is 102112112191. The next prime is 102112112213. The reversal of 102112112212 is 212211211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112112213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1011010962 + ... + 1011011062.

It is an arithmetic number, because the mean of its divisors is an integer number (1486893100).

Almost surely, 2^102112112212 is an apocalyptic number.

It is an amenable number.

102112112212 is an abundant number, since it is smaller than the sum of its proper divisors (112000494188).

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

102112112212 is a wasteful number, since it uses less digits than its factorization.

102112112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102112112212 its reverse (212211211201), we get a palindrome (314323323413).

The spelling of 102112112212 in words is "one hundred two billion, one hundred twelve million, one hundred twelve thousand, two hundred twelve".