22221102191 has 2 divisors, whose sum is σ = 22221102192. Its totient is φ = 22221102190.

The previous prime is 22221102161. The next prime is 22221102259. The reversal of 22221102191 is 19120112222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22221102191 - 2²⁶ = 22153993327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221102161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110551095 + 11110551096.

It is an arithmetic number, because the mean of its divisors is an integer number (11110551096).

Almost surely, 2^22221102191 is an apocalyptic number.

22221102191 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221102191 is an equidigital number, since it uses as much as digits as its factorization.

22221102191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 22221102191 in words is "twenty-two billion, two hundred twenty-one million, one hundred two thousand, one hundred ninety-one".