222990475091 has 2 divisors, whose sum is σ = 222990475092. Its totient is φ = 222990475090.

The previous prime is 222990475033. The next prime is 222990475117. The reversal of 222990475091 is 190574099222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222990475091 - 2⁶ = 222990475027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (222990465091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111495237545 + 111495237546.

It is an arithmetic number, because the mean of its divisors is an integer number (111495237546).

Almost surely, 2^222990475091 is an apocalyptic number.

222990475091 is a deficient number, since it is larger than the sum of its proper divisors (1).

222990475091 is an equidigital number, since it uses as much as digits as its factorization.

222990475091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 222990475091 in words is "two hundred twenty-two billion, nine hundred ninety million, four hundred seventy-five thousand, ninety-one".