21022292604 has 48 divisors (see below), whose sum is σ = 50353873920. Its totient is φ = 6822168960.

The previous prime is 21022292597. The next prime is 21022292617. The reversal of 21022292604 is 40629222012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191067 + ... + 280269.

It is an arithmetic number, because the mean of its divisors is an integer number (1049039040).

Almost surely, 2^21022292604 is an apocalyptic number.

It is an amenable number.

21022292604 is an abundant number, since it is smaller than the sum of its proper divisors (29331581316).

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

21022292604 is a wasteful number, since it uses less digits than its factorization.

21022292604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89730 (or 89728 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 21022292604 in words is "twenty-one billion, twenty-two million, two hundred ninety-two thousand, six hundred four".