20122011992 has 16 divisors (see below), whose sum is σ = 37893530400. Its totient is φ = 10017070560.

The previous prime is 20122011983. The next prime is 20122012019. The reversal of 20122011992 is 29911022102.

It is a congruent number.

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, 5489984 + ... + 5493647.

It is an arithmetic number, because the mean of its divisors is an integer number (2368345650).

Almost surely, 2^20122011992 is an apocalyptic number.

It is an amenable number.

20122011992 is a deficient number, since it is larger than the sum of its proper divisors (17771518408).

20122011992 is a wasteful number, since it uses less digits than its factorization.

20122011992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10983866 (or 10983862 counting only the distinct ones).

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

The spelling of 20122011992 in words is "twenty billion, one hundred twenty-two million, eleven thousand, nine hundred ninety-two".