12208521570 has 32 divisors (see below), whose sum is σ = 33486231168. Its totient is φ = 2790519168.

The previous prime is 12208521499. The next prime is 12208521571. The reversal of 12208521570 is 7512580221.

It is not an unprimeable number, because it can be changed into a prime (12208521571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29067699 + ... + 29068118.

It is an arithmetic number, because the mean of its divisors is an integer number (1046444724).

Almost surely, 2^12208521570 is an apocalyptic number.

12208521570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12208521570 is an abundant number, since it is smaller than the sum of its proper divisors (21277709598).

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

12208521570 is a wasteful number, since it uses less digits than its factorization.

12208521570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58135834.

The product of its (nonzero) digits is 11200, while the sum is 33.

The spelling of 12208521570 in words is "twelve billion, two hundred eight million, five hundred twenty-one thousand, five hundred seventy".