222568091 has 2 divisors, whose sum is σ = 222568092. Its totient is φ = 222568090.

The previous prime is 222568013. The next prime is 222568103. The reversal of 222568091 is 190865222.

It is a happy number.

222568091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222568091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222564091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111284045 + 111284046.

It is an arithmetic number, because the mean of its divisors is an integer number (111284046).

Almost surely, 2^222568091 is an apocalyptic number.

222568091 is a deficient number, since it is larger than the sum of its proper divisors (1).

222568091 is an equidigital number, since it uses as much as digits as its factorization.

222568091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 222568091 is about 14918.7161310885. The cubic root of 222568091 is about 606.0209440274.

The spelling of 222568091 in words is "two hundred twenty-two million, five hundred sixty-eight thousand, ninety-one".