112221211121191 has 2 divisors, whose sum is σ = 112221211121192. Its totient is φ = 112221211121190.

The previous prime is 112221211121183. The next prime is 112221211121317. The reversal of 112221211121191 is 191121112122211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112221211121191 - 2³ = 112221211121183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112221211121891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110605560595 + 56110605560596.

It is an arithmetic number, because the mean of its divisors is an integer number (56110605560596).

Almost surely, 2^{112221211121191} is an apocalyptic number.

112221211121191 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221211121191 is an equidigital number, since it uses as much as digits as its factorization.

112221211121191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 28.

The spelling of 112221211121191 in words is "one hundred twelve trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred ninety-one".