102112021121202 has 24 divisors (see below), whose sum is σ = 221382474153984. Its totient is φ = 34015838569944.

The previous prime is 102112021121153. The next prime is 102112021121207. The reversal of 102112021121202 is 202121120211201.

102112021121202 is a `hidden beast` number, since 1 + 0 + 211 + 20 + 211 + 21 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102112021121207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1791787698 + ... + 1791844685.

It is an arithmetic number, because the mean of its divisors is an integer number (9224269756416).

Almost surely, 2^{102112021121202} is an apocalyptic number.

102112021121202 is an abundant number, since it is smaller than the sum of its proper divisors (119270453032782).

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

102112021121202 is a wasteful number, since it uses less digits than its factorization.

102112021121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583633974 (or 3583633971 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102112021121202 its reverse (202121120211201), we get a palindrome (304233141332403).

The spelling of 102112021121202 in words is "one hundred two trillion, one hundred twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred two".