121366151512620 has 48 divisors (see below), whose sum is σ = 388371684841728. Its totient is φ = 27740834631360.

The previous prime is 121366151512609. The next prime is 121366151512667. The reversal of 121366151512620 is 26215151663121.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144483513286 + ... + 144483514125.

It is an arithmetic number, because the mean of its divisors is an integer number (8091076767536).

Almost surely, 2^{121366151512620} is an apocalyptic number.

121366151512620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121366151512620 is an abundant number, since it is smaller than the sum of its proper divisors (267005533329108).

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

121366151512620 is a wasteful number, since it uses less digits than its factorization.

121366151512620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288967027430 (or 288967027428 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 121366151512620 in words is "one hundred twenty-one trillion, three hundred sixty-six billion, one hundred fifty-one million, five hundred twelve thousand, six hundred twenty".