220230091 has 2 divisors, whose sum is σ = 220230092. Its totient is φ = 220230090.

The previous prime is 220230041. The next prime is 220230113. The reversal of 220230091 is 190032022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220230091 - 2⁷ = 220229963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220230011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115045 + 110115046.

It is an arithmetic number, because the mean of its divisors is an integer number (110115046).

Almost surely, 2^220230091 is an apocalyptic number.

220230091 is a deficient number, since it is larger than the sum of its proper divisors (1).

220230091 is an equidigital number, since it uses as much as digits as its factorization.

220230091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 220230091 is about 14840.1513132448. The cubic root of 220230091 is about 603.8914572946.

The spelling of 220230091 in words is "two hundred twenty million, two hundred thirty thousand, ninety-one".