12202815870 has 48 divisors (see below), whose sum is σ = 36259797600. Its totient is φ = 2789214912.

The previous prime is 12202815841. The next prime is 12202815881. The reversal of 12202815870 is 7851820221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9684145 + ... + 9685404.

It is an arithmetic number, because the mean of its divisors is an integer number (755412450).

Almost surely, 2^12202815870 is an apocalyptic number.

12202815870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12202815870 is an abundant number, since it is smaller than the sum of its proper divisors (24056981730).

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

12202815870 is a wasteful number, since it uses less digits than its factorization.

12202815870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19369569 (or 19369566 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 12202815870 in words is "twelve billion, two hundred two million, eight hundred fifteen thousand, eight hundred seventy".