121357923122 has 18 divisors (see below), whose sum is σ = 182852671293. Its totient is φ = 60408243792.

The previous prime is 121357923017. The next prime is 121357923233. The reversal of 121357923122 is 221329753121.

It is a happy number.

121357923122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 70341117961 + 51016805161 = 265219^2 + 225869^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=246331.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 154202813 + ... + 154203599.

Almost surely, 2^121357923122 is an apocalyptic number.

121357923122 is a deficient number, since it is larger than the sum of its proper divisors (61494748171).

121357923122 is an frugal number, since it uses more digits than its factorization.

121357923122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 1102 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The spelling of 121357923122 in words is "one hundred twenty-one billion, three hundred fifty-seven million, nine hundred twenty-three thousand, one hundred twenty-two".