121527615212 has 48 divisors (see below), whose sum is σ = 221422387200. Its totient is φ = 58298486400.

The previous prime is 121527615193. The next prime is 121527615229. The reversal of 121527615212 is 212516725121.

It is a super-2 number, since 2×121527615212² (a number of 23 digits) contains 22 as substring.

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, 39856664 + ... + 39859712.

It is an arithmetic number, because the mean of its divisors is an integer number (4612966400).

Almost surely, 2^121527615212 is an apocalyptic number.

It is an amenable number.

121527615212 is a deficient number, since it is larger than the sum of its proper divisors (99894771988).

121527615212 is a wasteful number, since it uses less digits than its factorization.

121527615212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742 (or 5740 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The spelling of 121527615212 in words is "one hundred twenty-one billion, five hundred twenty-seven million, six hundred fifteen thousand, two hundred twelve".