21036562226 has 8 divisors (see below), whose sum is σ = 31731127920. Its totient is φ = 10459519588.

The previous prime is 21036562189. The next prime is 21036562279. The reversal of 21036562226 is 62226563012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29380316 + ... + 29381031.

It is an arithmetic number, because the mean of its divisors is an integer number (3966390990).

Almost surely, 2^21036562226 is an apocalyptic number.

21036562226 is a deficient number, since it is larger than the sum of its proper divisors (10694565694).

21036562226 is a wasteful number, since it uses less digits than its factorization.

21036562226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58761528.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 21036562226 in words is "twenty-one billion, thirty-six million, five hundred sixty-two thousand, two hundred twenty-six".