220021011992 has 16 divisors (see below), whose sum is σ = 426764894400. Its totient is φ = 106217040160.

The previous prime is 220021011989. The next prime is 220021012009. The reversal of 220021011992 is 299110120022.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474182984 + ... + 474183447.

It is an arithmetic number, because the mean of its divisors is an integer number (26672805900).

Almost surely, 2^220021011992 is an apocalyptic number.

It is an amenable number.

220021011992 is a deficient number, since it is larger than the sum of its proper divisors (206743882408).

220021011992 is a wasteful number, since it uses less digits than its factorization.

220021011992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948366466 (or 948366462 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 220021011992 in words is "two hundred twenty billion, twenty-one million, eleven thousand, nine hundred ninety-two".