12222331111391 has 2 divisors, whose sum is σ = 12222331111392. Its totient is φ = 12222331111390.

The previous prime is 12222331111121. The next prime is 12222331111439. The reversal of 12222331111391 is 19311113322221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12222331111391 - 2³⁸ = 11947453204447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222331110391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111165555695 + 6111165555696.

It is an arithmetic number, because the mean of its divisors is an integer number (6111165555696).

Almost surely, 2^{12222331111391} is an apocalyptic number.

12222331111391 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222331111391 is an equidigital number, since it uses as much as digits as its factorization.

12222331111391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The spelling of 12222331111391 in words is "twelve trillion, two hundred twenty-two billion, three hundred thirty-one million, one hundred eleven thousand, three hundred ninety-one".