22110121992 has 32 divisors (see below), whose sum is σ = 63171777600. Its totient is φ = 6317177664.

The previous prime is 22110121981. The next prime is 22110122011. The reversal of 22110121992 is 29912101122.

It is a super-2 number, since 2×22110121992² (a number of 21 digits) contains 22 as substring.

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, 65803767 + ... + 65804102.

It is an arithmetic number, because the mean of its divisors is an integer number (1974118050).

Almost surely, 2^22110121992 is an apocalyptic number.

It is an amenable number.

22110121992 is an abundant number, since it is smaller than the sum of its proper divisors (41061655608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22110121992 is a wasteful number, since it uses less digits than its factorization.

22110121992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131607885 (or 131607881 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 22110121992 in words is "twenty-two billion, one hundred ten million, one hundred twenty-one thousand, nine hundred ninety-two".