20220021992 has 32 divisors (see below), whose sum is σ = 38282025600. Its totient is φ = 10011935424.

The previous prime is 20220021919. The next prime is 20220022007. The reversal of 20220021992 is 29912002202.

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, 331253 + ... + 387515.

It is an arithmetic number, because the mean of its divisors is an integer number (1196313300).

Almost surely, 2^20220021992 is an apocalyptic number.

It is an amenable number.

20220021992 is a deficient number, since it is larger than the sum of its proper divisors (18062003608).

20220021992 is a wasteful number, since it uses less digits than its factorization.

20220021992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56705 (or 56701 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20220021992 in words is "twenty billion, two hundred twenty million, twenty-one thousand, nine hundred ninety-two".