21122410204 has 36 divisors (see below), whose sum is σ = 43013716200. Its totient is φ = 9049404000.

The previous prime is 21122410147. The next prime is 21122410229. The reversal of 21122410204 is 40201422112.

It is a congruent 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, 620622 + ... + 653770.

It is an arithmetic number, because the mean of its divisors is an integer number (1194825450).

Almost surely, 2^21122410204 is an apocalyptic number.

It is an amenable number.

21122410204 is an abundant number, since it is smaller than the sum of its proper divisors (21891305996).

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

21122410204 is a wasteful number, since it uses less digits than its factorization.

21122410204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36418 (or 36409 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21122410204 its reverse (40201422112), we get a palindrome (61323832316).

The spelling of 21122410204 in words is "twenty-one billion, one hundred twenty-two million, four hundred ten thousand, two hundred four".