121334547880 has 64 divisors (see below), whose sum is σ = 336003373440. Its totient is φ = 38400383232.

The previous prime is 121334547871. The next prime is 121334547911. The reversal of 121334547880 is 88745433121.

It is a self number, because there is not a number n which added to its sum of digits gives 121334547880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16663194 + ... + 16670473.

It is an arithmetic number, because the mean of its divisors is an integer number (5250052710).

Almost surely, 2^121334547880 is an apocalyptic number.

121334547880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121334547880 is an abundant number, since it is smaller than the sum of its proper divisors (214668825560).

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

121334547880 is a wasteful number, since it uses less digits than its factorization.

121334547880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333698 (or 33333694 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 121334547880 in words is "one hundred twenty-one billion, three hundred thirty-four million, five hundred forty-seven thousand, eight hundred eighty".