122111110992 has 40 divisors (see below), whose sum is σ = 339719374624. Its totient is φ = 37572649344.

The previous prime is 122111110981. The next prime is 122111111011. The reversal of 122111110992 is 299011111221.

It is a super-2 number, since 2×122111110992² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 97844818 + ... + 97846065.

Almost surely, 2^122111110992 is an apocalyptic number.

122111110992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122111110992 is an abundant number, since it is smaller than the sum of its proper divisors (217608263632).

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

122111110992 is a wasteful number, since it uses less digits than its factorization.

122111110992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195690907 (or 195690901 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 122111110992 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred ten thousand, nine hundred ninety-two".