21102622106 has 16 divisors (see below), whose sum is σ = 32746755816. Its totient is φ = 10191200256.

The previous prime is 21102622063. The next prime is 21102622117. The reversal of 21102622106 is 60122620112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20275196881 + 827425225 = 142391^2 + 28765^2 .

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, 1030631 + ... + 1050906.

Almost surely, 2^21102622106 is an apocalyptic number.

21102622106 is a deficient number, since it is larger than the sum of its proper divisors (11644133710).

21102622106 is a wasteful number, since it uses less digits than its factorization.

21102622106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081713.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 21102622106 in words is "twenty-one billion, one hundred two million, six hundred twenty-two thousand, one hundred six".