220122221191 has 2 divisors, whose sum is σ = 220122221192. Its totient is φ = 220122221190.

The previous prime is 220122221161. The next prime is 220122221243. The reversal of 220122221191 is 191122221022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220122221191 - 2⁹ = 220122220679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220122221131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061110595 + 110061110596.

It is an arithmetic number, because the mean of its divisors is an integer number (110061110596).

Almost surely, 2^220122221191 is an apocalyptic number.

220122221191 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122221191 is an equidigital number, since it uses as much as digits as its factorization.

220122221191 is an evil number, because the sum of its binary digits is even.

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

The spelling of 220122221191 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ninety-one".