21102110092 has 36 divisors (see below), whose sum is σ = 44005636584. Its totient is φ = 8823178560.

The previous prime is 21102110039. The next prime is 21102110123. The reversal of 21102110092 is 29001120112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1304938 + ... + 1321009.

It is an arithmetic number, because the mean of its divisors is an integer number (1222378794).

Almost surely, 2^21102110092 is an apocalyptic number.

It is an amenable number.

21102110092 is an abundant number, since it is smaller than the sum of its proper divisors (22903526492).

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

21102110092 is a wasteful number, since it uses less digits than its factorization.

21102110092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626006 (or 2625997 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 21102110092 in words is "twenty-one billion, one hundred two million, one hundred ten thousand, ninety-two".