12521325224 has 16 divisors (see below), whose sum is σ = 23662348800. Its totient is φ = 6211365552.

The previous prime is 12521325211. The next prime is 12521325233. The reversal of 12521325224 is 42252312521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6161054 + ... + 6163085.

It is an arithmetic number, because the mean of its divisors is an integer number (1478896800).

Almost surely, 2^12521325224 is an apocalyptic number.

It is an amenable number.

12521325224 is a deficient number, since it is larger than the sum of its proper divisors (11141023576).

12521325224 is a wasteful number, since it uses less digits than its factorization.

12521325224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12324272 (or 12324268 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

Adding to 12521325224 its reverse (42252312521), we get a palindrome (54773637745).

The spelling of 12521325224 in words is "twelve billion, five hundred twenty-one million, three hundred twenty-five thousand, two hundred twenty-four".