102112112201212 has 12 divisors (see below), whose sum is σ = 179834388686680. Its totient is φ = 50730858290736.

The previous prime is 102112112201123. The next prime is 102112112201261. The reversal of 102112112201212 is 212102211211201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102112112201212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81299451762 + ... + 81299453017.

Almost surely, 2^{102112112201212} is an apocalyptic number.

It is an amenable number.

102112112201212 is a deficient number, since it is larger than the sum of its proper divisors (77722276485468).

102112112201212 is a wasteful number, since it uses less digits than its factorization.

102112112201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162598904940 (or 162598904938 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102112112201212 its reverse (212102211211201), we get a palindrome (314214323412413).

The spelling of 102112112201212 in words is "one hundred two trillion, one hundred twelve billion, one hundred twelve million, two hundred one thousand, two hundred twelve".