102121012012 has 12 divisors (see below), whose sum is σ = 179021500840. Its totient is φ = 50972011776.

The previous prime is 102121012009. The next prime is 102121012027. The reversal of 102121012012 is 210210121201.

It is a junction number, because it is equal to n+sod(n) for n = 102121011983 and 102121012001.

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, 22120962 + ... + 22125577.

Almost surely, 2^102121012012 is an apocalyptic number.

It is an amenable number.

102121012012 is a deficient number, since it is larger than the sum of its proper divisors (76900488828).

102121012012 is a wasteful number, since it uses less digits than its factorization.

102121012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44247120 (or 44247118 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121012012 its reverse (210210121201), we get a palindrome (312331133213).

The spelling of 102121012012 in words is "one hundred two billion, one hundred twenty-one million, twelve thousand, twelve".