22021921983 has 16 divisors (see below), whose sum is σ = 29558248160. Its totient is φ = 14583494016.

The previous prime is 22021921973. The next prime is 22021922023. The reversal of 22021921983 is 38912912022.

It is not a de Polignac number, because 22021921983 - 2⁴ = 22021921967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021921903) 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, 3009333 + ... + 3016641.

It is an arithmetic number, because the mean of its divisors is an integer number (1847390510).

Almost surely, 2^22021921983 is an apocalyptic number.

22021921983 is a deficient number, since it is larger than the sum of its proper divisors (7536326177).

22021921983 is a wasteful number, since it uses less digits than its factorization.

22021921983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 22021921983 in words is "twenty-two billion, twenty-one million, nine hundred twenty-one thousand, nine hundred eighty-three".