121459217040 has 160 divisors (see below), whose sum is σ = 478125231360. Its totient is φ = 27762103296.

The previous prime is 121459217039. The next prime is 121459217071. The reversal of 121459217040 is 40712954121.

121459217040 is a `hidden beast` number, since 1 + 2 + 14 + 592 + 17 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 121459216986 and 121459217004.

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, 4001389 + ... + 4031628.

It is an arithmetic number, because the mean of its divisors is an integer number (2988282696).

Almost surely, 2^121459217040 is an apocalyptic number.

121459217040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121459217040 is an abundant number, since it is smaller than the sum of its proper divisors (356666014320).

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

121459217040 is a wasteful number, since it uses less digits than its factorization.

121459217040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033046 (or 8033034 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 121459217040 in words is "one hundred twenty-one billion, four hundred fifty-nine million, two hundred seventeen thousand, forty".