121223615288 has 32 divisors (see below), whose sum is σ = 230447669760. Its totient is φ = 59775986400.

The previous prime is 121223615269. The next prime is 121223615323. The reversal of 121223615288 is 882516322121.

121223615288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126638 + ... + 508413.

It is an arithmetic number, because the mean of its divisors is an integer number (7201489680).

Almost surely, 2^121223615288 is an apocalyptic number.

It is an amenable number.

121223615288 is a deficient number, since it is larger than the sum of its proper divisors (109224054472).

121223615288 is a wasteful number, since it uses less digits than its factorization.

121223615288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635387 (or 635383 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The spelling of 121223615288 in words is "one hundred twenty-one billion, two hundred twenty-three million, six hundred fifteen thousand, two hundred eighty-eight".