222159697 has 2 divisors, whose sum is σ = 222159698. Its totient is φ = 222159696.

The previous prime is 222159661. The next prime is 222159731. The reversal of 222159697 is 796951222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213627456 + 8532241 = 14616^2 + 2921^2 .

It is a cyclic number.

It is not a de Polignac number, because 222159697 - 2⁷ = 222159569 is a prime.

It is a super-2 number, since 2×222159697² = 98709861942263618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222159617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111079848 + 111079849.

It is an arithmetic number, because the mean of its divisors is an integer number (111079849).

Almost surely, 2^222159697 is an apocalyptic number.

It is an amenable number.

222159697 is a deficient number, since it is larger than the sum of its proper divisors (1).

222159697 is an equidigital number, since it uses as much as digits as its factorization.

222159697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 222159697 is about 14905.0225427538. The cubic root of 222159697 is about 605.6500510142.

The spelling of 222159697 in words is "two hundred twenty-two million, one hundred fifty-nine thousand, six hundred ninety-seven".