12981307212 has 30 divisors (see below), whose sum is σ = 33935702108. Its totient is φ = 4327102296.

The previous prime is 12981307201. The next prime is 12981307247. The reversal of 12981307212 is 21270318921.

12981307212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20032558 + ... + 20033205.

Almost surely, 2^12981307212 is an apocalyptic number.

12981307212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12981307212 is an abundant number, since it is smaller than the sum of its proper divisors (20954394896).

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

12981307212 is a wasteful number, since it uses less digits than its factorization.

12981307212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40065779 (or 40065768 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 12981307212 in words is "twelve billion, nine hundred eighty-one million, three hundred seven thousand, two hundred twelve".