12708640212 has 12 divisors (see below), whose sum is σ = 29653493856. Its totient is φ = 4236213400.

The previous prime is 12708640211. The next prime is 12708640237. The reversal of 12708640212 is 21204680721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12708640211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529526664 + ... + 529526687.

It is an arithmetic number, because the mean of its divisors is an integer number (2471124488).

Almost surely, 2^12708640212 is an apocalyptic number.

12708640212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12708640212 is an abundant number, since it is smaller than the sum of its proper divisors (16944853644).

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

12708640212 is a wasteful number, since it uses less digits than its factorization.

12708640212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059053358 (or 1059053356 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 12708640212 in words is "twelve billion, seven hundred eight million, six hundred forty thousand, two hundred twelve".