12521525322 has 8 divisors (see below), whose sum is σ = 25043050656. Its totient is φ = 4173841772.

The previous prime is 12521525299. The next prime is 12521525347. The reversal of 12521525322 is 22352512521.

It is a sphenic number, since it is the product of 3 distinct primes.

12521525322 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12521525322.

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, 1043460438 + ... + 1043460449.

It is an arithmetic number, because the mean of its divisors is an integer number (3130381332).

Almost surely, 2^12521525322 is an apocalyptic number.

12521525322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12521525322 is a wasteful number, since it uses less digits than its factorization.

12521525322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086920892.

The product of its digits is 12000, while the sum is 30.

The spelling of 12521525322 in words is "twelve billion, five hundred twenty-one million, five hundred twenty-five thousand, three hundred twenty-two".