12222647374279 has 2 divisors, whose sum is σ = 12222647374280. Its totient is φ = 12222647374278.

The previous prime is 12222647374271. The next prime is 12222647374283. The reversal of 12222647374279 is 97247374622221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12222647374279 - 2³ = 12222647374271 is a prime.

It is a super-2 number, since 2×12222647374279² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222647374271) 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 as a sum of consecutive naturals, namely, 6111323687139 + 6111323687140.

It is an arithmetic number, because the mean of its divisors is an integer number (6111323687140).

Almost surely, 2^{12222647374279} is an apocalyptic number.

12222647374279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222647374279 is an equidigital number, since it uses as much as digits as its factorization.

12222647374279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28449792, while the sum is 58.

The spelling of 12222647374279 in words is "twelve trillion, two hundred twenty-two billion, six hundred forty-seven million, three hundred seventy-four thousand, two hundred seventy-nine".