12513555022 has 4 divisors (see below), whose sum is σ = 18770332536. Its totient is φ = 6256777510.

The previous prime is 12513554987. The next prime is 12513555083. The reversal of 12513555022 is 22055531521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3128388754 + ... + 3128388757.

It is an arithmetic number, because the mean of its divisors is an integer number (4692583134).

Almost surely, 2^12513555022 is an apocalyptic number.

12513555022 is a deficient number, since it is larger than the sum of its proper divisors (6256777514).

12513555022 is an equidigital number, since it uses as much as digits as its factorization.

12513555022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256777513.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 12513555022 in words is "twelve billion, five hundred thirteen million, five hundred fifty-five thousand, twenty-two".