12222564791 has 2 divisors, whose sum is σ = 12222564792. Its totient is φ = 12222564790.

The previous prime is 12222564763. The next prime is 12222564833. The reversal of 12222564791 is 19746522221.

12222564791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12222564791 - 2²⁶ = 12155455927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222564391) by changing a digit.

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 as a sum of consecutive naturals, namely, 6111282395 + 6111282396.

It is an arithmetic number, because the mean of its divisors is an integer number (6111282396).

Almost surely, 2^12222564791 is an apocalyptic number.

12222564791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222564791 is an equidigital number, since it uses as much as digits as its factorization.

12222564791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The spelling of 12222564791 in words is "twelve billion, two hundred twenty-two million, five hundred sixty-four thousand, seven hundred ninety-one".