21106882107 has 6 divisors (see below), whose sum is σ = 30487718612. Its totient is φ = 14071254732.

The previous prime is 21106882099. The next prime is 21106882129. The reversal of 21106882107 is 70128860112.

It is not a de Polignac number, because 21106882107 - 2³ = 21106882099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21106882157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1172604553 + ... + 1172604570.

Almost surely, 2^21106882107 is an apocalyptic number.

21106882107 is a deficient number, since it is larger than the sum of its proper divisors (9380836505).

21106882107 is a wasteful number, since it uses less digits than its factorization.

21106882107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345209129 (or 2345209126 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 21106882107 in words is "twenty-one billion, one hundred six million, eight hundred eighty-two thousand, one hundred seven".