21107324202 has 32 divisors (see below), whose sum is σ = 44804124864. Its totient is φ = 6606163200.

The previous prime is 21107324179. The next prime is 21107324209. The reversal of 21107324202 is 20242370112.

It is not an unprimeable number, because it can be changed into a prime (21107324209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202824 + ... + 288707.

It is an arithmetic number, because the mean of its divisors is an integer number (1400128902).

Almost surely, 2^21107324202 is an apocalyptic number.

21107324202 is an abundant number, since it is smaller than the sum of its proper divisors (23696800662).

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

21107324202 is a wasteful number, since it uses less digits than its factorization.

21107324202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491974.

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 21107324202 its reverse (20242370112), we get a palindrome (41349694314).

The spelling of 21107324202 in words is "twenty-one billion, one hundred seven million, three hundred twenty-four thousand, two hundred two".