21107201860630 has 32 divisors (see below), whose sum is σ = 39533424776064. Its totient is φ = 8107334691456.

The previous prime is 21107201860579. The next prime is 21107201860649. The reversal of 21107201860630 is 3606810270112.

It is a self number, because there is not a number n which added to its sum of digits gives 21107201860630.

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, 423644337 + ... + 423694156.

It is an arithmetic number, because the mean of its divisors is an integer number (1235419524252).

Almost surely, 2^{21107201860630} is an apocalyptic number.

21107201860630 is a deficient number, since it is larger than the sum of its proper divisors (18426222915434).

21107201860630 is a wasteful number, since it uses less digits than its factorization.

21107201860630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847338600.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 21107201860630 in words is "twenty-one trillion, one hundred seven billion, two hundred one million, eight hundred sixty thousand, six hundred thirty".