12507509212 has 48 divisors (see below), whose sum is σ = 25305654528. Its totient is φ = 5345918720.

The previous prime is 12507509177. The next prime is 12507509249. The reversal of 12507509212 is 21290570521.

12507509212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 880833 + ... + 894919.

It is an arithmetic number, because the mean of its divisors is an integer number (527201136).

Almost surely, 2^12507509212 is an apocalyptic number.

It is an amenable number.

12507509212 is an abundant number, since it is smaller than the sum of its proper divisors (12798145316).

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

12507509212 is a wasteful number, since it uses less digits than its factorization.

12507509212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15306 (or 15304 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 12507509212 in words is "twelve billion, five hundred seven million, five hundred nine thousand, two hundred twelve".