121364186884512 has 192 divisors, whose sum is σ = 396293260938624. Its totient is φ = 31951081635840.

The previous prime is 121364186884469. The next prime is 121364186884513. The reversal of 121364186884512 is 215488681463121.

It is not an unprimeable number, because it can be changed into a prime (121364186884513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259785193 + ... + 260251944.

It is an arithmetic number, because the mean of its divisors is an integer number (2064027400722).

Almost surely, 2^{121364186884512} is an apocalyptic number.

121364186884512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121364186884512 is an abundant number, since it is smaller than the sum of its proper divisors (274929074054112).

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

121364186884512 is a wasteful number, since it uses less digits than its factorization.

121364186884512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520037191 (or 520037183 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 60.

The spelling of 121364186884512 in words is "one hundred twenty-one trillion, three hundred sixty-four billion, one hundred eighty-six million, eight hundred eighty-four thousand, five hundred twelve".