21222672762 has 16 divisors (see below), whose sum is σ = 43164758880. Its totient is φ = 6954322032.

The previous prime is 21222672739. The next prime is 21222672781. The reversal of 21222672762 is 26727622212.

It is a self number, because there is not a number n which added to its sum of digits gives 21222672762.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29975173 + ... + 29975880.

It is an arithmetic number, because the mean of its divisors is an integer number (2697797430).

Almost surely, 2^21222672762 is an apocalyptic number.

21222672762 is an abundant number, since it is smaller than the sum of its proper divisors (21942086118).

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

21222672762 is a wasteful number, since it uses less digits than its factorization.

21222672762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59951117.

The product of its digits is 112896, while the sum is 39.

The spelling of 21222672762 in words is "twenty-one billion, two hundred twenty-two million, six hundred seventy-two thousand, seven hundred sixty-two".