102111110012 has 24 divisors (see below), whose sum is σ = 188245520400. Its totient is φ = 48330850176.

The previous prime is 102111110009. The next prime is 102111110021. The reversal of 102111110012 is 210011111201.

It is a junction number, because it is equal to n+sod(n) for n = 102111109975 and 102111110002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423203 + ... + 619130.

It is an arithmetic number, because the mean of its divisors is an integer number (7843563350).

Almost surely, 2^102111110012 is an apocalyptic number.

It is an amenable number.

102111110012 is a deficient number, since it is larger than the sum of its proper divisors (86134410388).

102111110012 is a wasteful number, since it uses less digits than its factorization.

102111110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043645 (or 1043643 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102111110012 its reverse (210011111201), we get a palindrome (312122221213).

The spelling of 102111110012 in words is "one hundred two billion, one hundred eleven million, one hundred ten thousand, twelve".