12972851112 has 64 divisors (see below), whose sum is σ = 34943388480. Its totient is φ = 3989763072.

The previous prime is 12972851083. The next prime is 12972851117. The reversal of 12972851112 is 21115827921.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12972851117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745503 + ... + 762705.

It is an arithmetic number, because the mean of its divisors is an integer number (545990445).

Almost surely, 2^12972851112 is an apocalyptic number.

12972851112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12972851112 is an abundant number, since it is smaller than the sum of its proper divisors (21970537368).

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

12972851112 is a wasteful number, since it uses less digits than its factorization.

12972851112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19642 (or 19638 counting only the distinct ones).

The product of its digits is 20160, while the sum is 39.

The spelling of 12972851112 in words is "twelve billion, nine hundred seventy-two million, eight hundred fifty-one thousand, one hundred twelve".