121163879292 has 24 divisors (see below), whose sum is σ = 282870852096. Its totient is φ = 40365797808.

The previous prime is 121163879261. The next prime is 121163879293. The reversal of 121163879292 is 292978361121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121163879293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2747458 + ... + 2791209.

It is an arithmetic number, because the mean of its divisors is an integer number (11786285504).

Almost surely, 2^121163879292 is an apocalyptic number.

121163879292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121163879292 is an abundant number, since it is smaller than the sum of its proper divisors (161706972804).

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

121163879292 is a wasteful number, since it uses less digits than its factorization.

121163879292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540497 (or 5540495 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The spelling of 121163879292 in words is "one hundred twenty-one billion, one hundred sixty-three million, eight hundred seventy-nine thousand, two hundred ninety-two".