12501222956328 has 16 divisors (see below), whose sum is σ = 31253057390880. Its totient is φ = 4167074318768.

The previous prime is 12501222956279. The next prime is 12501222956329. The reversal of 12501222956328 is 82365922210521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12501222956329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260442144900 + ... + 260442144947.

It is an arithmetic number, because the mean of its divisors is an integer number (1953316086930).

Almost surely, 2^{12501222956328} is an apocalyptic number.

It is an amenable number.

12501222956328 is an abundant number, since it is smaller than the sum of its proper divisors (18751834434552).

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

12501222956328 is a wasteful number, since it uses less digits than its factorization.

12501222956328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520884289856 (or 520884289852 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

It can be divided in two parts, 1250122 and 2956328, that added together give a triangular number (4206450 = T₂₉₀₀).

The spelling of 12501222956328 in words is "twelve trillion, five hundred one billion, two hundred twenty-two million, nine hundred fifty-six thousand, three hundred twenty-eight".