12551037427212 has 48 divisors (see below), whose sum is σ = 30799670157312. Its totient is φ = 3970269959040.

The previous prime is 12551037427177. The next prime is 12551037427261. The reversal of 12551037427212 is 21272473015521.

It is a happy 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, 178999489 + ... + 179069592.

It is an arithmetic number, because the mean of its divisors is an integer number (641659794944).

Almost surely, 2^{12551037427212} is an apocalyptic number.

12551037427212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12551037427212 is an abundant number, since it is smaller than the sum of its proper divisors (18248632730100).

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

12551037427212 is a wasteful number, since it uses less digits than its factorization.

12551037427212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358069238 (or 358069236 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 12551037427212 in words is "twelve trillion, five hundred fifty-one billion, thirty-seven million, four hundred twenty-seven thousand, two hundred twelve".