12256998572 has 288 divisors, whose sum is σ = 30622898880. Its totient is φ = 4226826240.

The previous prime is 12256998571. The next prime is 12256998653. The reversal of 12256998572 is 27589965221.

It is not an unprimeable number, because it can be changed into a prime (12256998571) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43619072 + ... + 43619352.

It is an arithmetic number, because the mean of its divisors is an integer number (106329510).

Almost surely, 2^12256998572 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 12256998572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15311449440).

12256998572 is an abundant number, since it is smaller than the sum of its proper divisors (18365900308).

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

12256998572 is a wasteful number, since it uses less digits than its factorization.

12256998572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 392 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 56.

The spelling of 12256998572 in words is "twelve billion, two hundred fifty-six million, nine hundred ninety-eight thousand, five hundred seventy-two".