12722045136 has 40 divisors (see below), whose sum is σ = 32986591104. Its totient is φ = 4225029120.

The previous prime is 12722045113. The next prime is 12722045159. The reversal of 12722045136 is 63154022721.

It is an interprime number because it is at equal distance from previous prime (12722045113) and next prime (12722045159).

It is a junction number, because it is equal to n+sod(n) for n = 12722045097 and 12722045106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476001 + ... + 502016.

Almost surely, 2^12722045136 is an apocalyptic number.

12722045136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12722045136 is an abundant number, since it is smaller than the sum of its proper divisors (20264545968).

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

12722045136 is a wasteful number, since it uses less digits than its factorization.

12722045136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978299 (or 978293 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

Adding to 12722045136 its reverse (63154022721), we get a palindrome (75876067857).

The spelling of 12722045136 in words is "twelve billion, seven hundred twenty-two million, forty-five thousand, one hundred thirty-six".