121652072000 has 56 divisors (see below), whose sum is σ = 301271376120. Its totient is φ = 48660825600.

The previous prime is 121652071999. The next prime is 121652072023. The reversal of 121652072000 is 270256121.

It can be written as a sum of positive squares in 4 ways, for example, as 22447230976 + 99204841024 = 149824^2 + 314968^2 .

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, 7595255 + ... + 7611254.

Almost surely, 2^121652072000 is an apocalyptic number.

121652072000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121652072000 is an abundant number, since it is smaller than the sum of its proper divisors (179619304120).

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

121652072000 is an equidigital number, since it uses as much as digits as its factorization.

121652072000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206536 (or 15206516 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 121652072000 in words is "one hundred twenty-one billion, six hundred fifty-two million, seventy-two thousand".