121163602081994 has 32 divisors (see below), whose sum is σ = 196487450281920. Its totient is φ = 55840428995328.

The previous prime is 121163602081933. The next prime is 121163602082111. The reversal of 121163602081994 is 499180206361121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45882674 + ... + 48451490.

It is an arithmetic number, because the mean of its divisors is an integer number (6140232821310).

Almost surely, 2^{121163602081994} is an apocalyptic number.

121163602081994 is a deficient number, since it is larger than the sum of its proper divisors (75323848199926).

121163602081994 is a wasteful number, since it uses less digits than its factorization.

121163602081994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602422.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 121163602081994 in words is "one hundred twenty-one trillion, one hundred sixty-three billion, six hundred two million, eighty-one thousand, nine hundred ninety-four".