12722872051 has 4 divisors (see below), whose sum is σ = 12902067504. Its totient is φ = 12543676600.

The previous prime is 12722872039. The next prime is 12722872061. The reversal of 12722872051 is 15027822721.

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

It is a cyclic number.

It is not a de Polignac number, because 12722872051 - 2²³ = 12714483443 is a prime.

It is a super-2 number, since 2×12722872051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12722872051.

It is not an unprimeable number, because it can be changed into a prime (12722872061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89597620 + ... + 89597761.

It is an arithmetic number, because the mean of its divisors is an integer number (3225516876).

Almost surely, 2^12722872051 is an apocalyptic number.

12722872051 is a deficient number, since it is larger than the sum of its proper divisors (179195453).

12722872051 is an equidigital number, since it uses as much as digits as its factorization.

12722872051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179195452.

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 12722872051 in words is "twelve billion, seven hundred twenty-two million, eight hundred seventy-two thousand, fifty-one".