221122233191 has 2 divisors, whose sum is σ = 221122233192. Its totient is φ = 221122233190.

The previous prime is 221122233173. The next prime is 221122233193. The reversal of 221122233191 is 191332221122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221122233191 - 2²² = 221118038887 is a prime.

It is a super-2 number, since 2×221122233191² (a number of 23 digits) contains 22 as substring.

Together with 221122233193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221122233193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561116595 + 110561116596.

It is an arithmetic number, because the mean of its divisors is an integer number (110561116596).

Almost surely, 2^221122233191 is an apocalyptic number.

221122233191 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122233191 is an equidigital number, since it uses as much as digits as its factorization.

221122233191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The spelling of 221122233191 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred thirty-three thousand, one hundred ninety-one".