121924854160 has 20 divisors (see below), whose sum is σ = 283475286108. Its totient is φ = 48769941632.

The previous prime is 121924854101. The next prime is 121924854169. The reversal of 121924854160 is 61458429121.

It can be written as a sum of positive squares in 2 ways, for example, as 74175611904 + 47749242256 = 272352^2 + 218516^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (121924854169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762030259 + ... + 762030418.

Almost surely, 2^121924854160 is an apocalyptic number.

121924854160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121924854160 is an abundant number, since it is smaller than the sum of its proper divisors (161550431948).

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

121924854160 is a wasteful number, since it uses less digits than its factorization.

121924854160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524060690 (or 1524060684 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 121924854160 in words is "one hundred twenty-one billion, nine hundred twenty-four million, eight hundred fifty-four thousand, one hundred sixty".