121662134250 has 64 divisors (see below), whose sum is σ = 308201182848. Its totient is φ = 31958995200.

The previous prime is 121662134233. The next prime is 121662134273. The reversal of 121662134250 is 52431266121.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1160319 + ... + 1260818.

It is an arithmetic number, because the mean of its divisors is an integer number (4815643482).

Almost surely, 2^121662134250 is an apocalyptic number.

121662134250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121662134250 is an abundant number, since it is smaller than the sum of its proper divisors (186539048598).

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

121662134250 is a wasteful number, since it uses less digits than its factorization.

121662134250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421224 (or 2421214 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 121662134250 in words is "one hundred twenty-one billion, six hundred sixty-two million, one hundred thirty-four thousand, two hundred fifty".