12255612312 has 16 divisors (see below), whose sum is σ = 30639030840. Its totient is φ = 4085204096.

The previous prime is 12255612287. The next prime is 12255612319. The reversal of 12255612312 is 21321655221.

It is a self number, because there is not a number n which added to its sum of digits gives 12255612312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255612319) 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, 255325233 + ... + 255325280.

Almost surely, 2^12255612312 is an apocalyptic number.

12255612312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12255612312 is an abundant number, since it is smaller than the sum of its proper divisors (18383418528).

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

12255612312 is a wasteful number, since it uses less digits than its factorization.

12255612312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510650522 (or 510650518 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The spelling of 12255612312 in words is "twelve billion, two hundred fifty-five million, six hundred twelve thousand, three hundred twelve".