222231111191 has 2 divisors, whose sum is σ = 222231111192. Its totient is φ = 222231111190.

The previous prime is 222231111143. The next prime is 222231111203. The reversal of 222231111191 is 191111132222.

222231111191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222231111191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222231111191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222231111101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111115555595 + 111115555596.

It is an arithmetic number, because the mean of its divisors is an integer number (111115555596).

Almost surely, 2^222231111191 is an apocalyptic number.

222231111191 is a deficient number, since it is larger than the sum of its proper divisors (1).

222231111191 is an equidigital number, since it uses as much as digits as its factorization.

222231111191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 26.

The spelling of 222231111191 in words is "two hundred twenty-two billion, two hundred thirty-one million, one hundred eleven thousand, one hundred ninety-one".