1022021111992 has 16 divisors (see below), whose sum is σ = 1968081195960. Its totient is φ = 497199459744.

The previous prime is 1022021111953. The next prime is 1022021112043. The reversal of 1022021111992 is 2991111202201.

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, 1726386718 + ... + 1726387309.

Almost surely, 2^{1022021111992} is an apocalyptic number.

It is an amenable number.

1022021111992 is a deficient number, since it is larger than the sum of its proper divisors (946060083968).

1022021111992 is a wasteful number, since it uses less digits than its factorization.

1022021111992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452774070 (or 3452774066 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 1022021111992 in words is "one trillion, twenty-two billion, twenty-one million, one hundred eleven thousand, nine hundred ninety-two".