12126222358887 has 128 divisors (see below), whose sum is σ = 20188546416640. Its totient is φ = 6341664700800.

The previous prime is 12126222358837. The next prime is 12126222358889. The reversal of 12126222358887 is 78885322262121.

It is not a de Polignac number, because 12126222358887 - 2²⁴ = 12126205581671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126222358889) 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 127 ways as a sum of consecutive naturals, for example, 4479578388 + ... + 4479581094.

It is an arithmetic number, because the mean of its divisors is an integer number (157723018880).

Almost surely, 2^{12126222358887} is an apocalyptic number.

12126222358887 is a deficient number, since it is larger than the sum of its proper divisors (8062324057753).

12126222358887 is a wasteful number, since it uses less digits than its factorization.

12126222358887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3524 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 57.

The spelling of 12126222358887 in words is "twelve trillion, one hundred twenty-six billion, two hundred twenty-two million, three hundred fifty-eight thousand, eight hundred eighty-seven".