12772216831 has 12 divisors (see below), whose sum is σ = 14056050736. Its totient is φ = 11596907520.

The previous prime is 12772216829. The next prime is 12772216867. The reversal of 12772216831 is 13861227721.

It is not a de Polignac number, because 12772216831 - 2¹ = 12772216829 is a prime.

It is a super-2 number, since 2×12772216831² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772216811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35455 + ... + 163711.

Almost surely, 2^12772216831 is an apocalyptic number.

12772216831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12772216831 is a deficient number, since it is larger than the sum of its proper divisors (1283833905).

12772216831 is a wasteful number, since it uses less digits than its factorization.

12772216831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129102 (or 129091 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The spelling of 12772216831 in words is "twelve billion, seven hundred seventy-two million, two hundred sixteen thousand, eight hundred thirty-one".