12522121504 has 48 divisors (see below), whose sum is σ = 25267267872. Its totient is φ = 6105512448.

The previous prime is 12522121487. The next prime is 12522121543. The reversal of 12522121504 is 40512122521.

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 7 ways as a sum of consecutive naturals, for example, 877692 + ... + 891844.

It is an arithmetic number, because the mean of its divisors is an integer number (526401414).

Almost surely, 2^12522121504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12522121504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12633633936).

12522121504 is an abundant number, since it is smaller than the sum of its proper divisors (12745146368).

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

12522121504 is a wasteful number, since it uses less digits than its factorization.

12522121504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14849 (or 14841 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 12522121504 in words is "twelve billion, five hundred twenty-two million, one hundred twenty-one thousand, five hundred four".