12522897720 has 96 divisors (see below), whose sum is σ = 42841515600. Its totient is φ = 3163677696.

The previous prime is 12522897719. The next prime is 12522897727. The reversal of 12522897720 is 2779822521.

12522897720 is a `hidden beast` number, since 12 + 522 + 8 + 97 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12522897727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 908577 + ... + 922256.

Almost surely, 2^12522897720 is an apocalyptic number.

12522897720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12522897720 is an abundant number, since it is smaller than the sum of its proper divisors (30318617880).

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

12522897720 is a wasteful number, since it uses less digits than its factorization.

12522897720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830869 (or 1830862 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 12522897720 in words is "twelve billion, five hundred twenty-two million, eight hundred ninety-seven thousand, seven hundred twenty".