12222120221791 has 2 divisors, whose sum is σ = 12222120221792. Its totient is φ = 12222120221790.

The previous prime is 12222120221741. The next prime is 12222120221803. The reversal of 12222120221791 is 19712202122221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12222120221791 - 2⁴³ = 3426027199583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12222120221741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111060110895 + 6111060110896.

It is an arithmetic number, because the mean of its divisors is an integer number (6111060110896).

Almost surely, 2^{12222120221791} is an apocalyptic number.

12222120221791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222120221791 is an equidigital number, since it uses as much as digits as its factorization.

12222120221791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 12222120221791 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, seven hundred ninety-one".