12222344566791 has 24 divisors (see below), whose sum is σ = 18584450604720. Its totient is φ = 7719056165376.

The previous prime is 12222344566741. The next prime is 12222344566811. The reversal of 12222344566791 is 19766544322221.

12222344566791 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 2 + 3 + 4 + 4 + 566 + 79 + 1 = 666.

It is not a de Polignac number, because 12222344566791 - 2⁶ = 12222344566727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222344566711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2701495 + ... + 5634071.

It is an arithmetic number, because the mean of its divisors is an integer number (774352108530).

Almost surely, 2^{12222344566791} is an apocalyptic number.

12222344566791 is a deficient number, since it is larger than the sum of its proper divisors (6362106037929).

12222344566791 is a wasteful number, since it uses less digits than its factorization.

12222344566791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956975 (or 2956972 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 12222344566791 in words is "twelve trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred sixty-six thousand, seven hundred ninety-one".