121208262528 has 64 divisors (see below), whose sum is σ = 324120402000. Its totient is φ = 40131575808.

The previous prime is 121208262523. The next prime is 121208262551. The reversal of 121208262528 is 825262802121.

121208262528 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121208262521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002001 + ... + 1116432.

Almost surely, 2^121208262528 is an apocalyptic number.

It is an amenable number.

121208262528 is an abundant number, since it is smaller than the sum of its proper divisors (202912139472).

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

121208262528 is a wasteful number, since it uses less digits than its factorization.

121208262528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118599 (or 2118587 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 121208262528 in words is "one hundred twenty-one billion, two hundred eight million, two hundred sixty-two thousand, five hundred twenty-eight".