121000117992 has 64 divisors (see below), whose sum is σ = 325804402560. Its totient is φ = 37226822400.

The previous prime is 121000117967. The next prime is 121000118033. The reversal of 121000117992 is 299711000121.

121000117992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121000117992² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 4423317 + ... + 4450587.

It is an arithmetic number, because the mean of its divisors is an integer number (5090693790).

Almost surely, 2^121000117992 is an apocalyptic number.

121000117992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121000117992 is an abundant number, since it is smaller than the sum of its proper divisors (204804284568).

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

121000117992 is a wasteful number, since it uses less digits than its factorization.

121000117992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41514 (or 41510 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 33.

The spelling of 121000117992 in words is "one hundred twenty-one billion, one hundred seventeen thousand, nine hundred ninety-two".