12222020211091 has 2 divisors, whose sum is σ = 12222020211092. Its totient is φ = 12222020211090.

The previous prime is 12222020211061. The next prime is 12222020211109. The reversal of 12222020211091 is 19011202022221.

It is a happy number.

Together with next prime (12222020211109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (19011202022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12222020211091 - 2⁷ = 12222020210963 is a prime.

It is not a weakly prime, because it can be changed into another prime (12222020211041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111010105545 + 6111010105546.

It is an arithmetic number, because the mean of its divisors is an integer number (6111010105546).

Almost surely, 2^{12222020211091} is an apocalyptic number.

12222020211091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222020211091 is an equidigital number, since it uses as much as digits as its factorization.

12222020211091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 12222020211091 in words is "twelve trillion, two hundred twenty-two billion, twenty million, two hundred eleven thousand, ninety-one".