222223109 has 2 divisors, whose sum is σ = 222223110. Its totient is φ = 222223108.

The previous prime is 222223093. The next prime is 222223151. The reversal of 222223109 is 901322222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221920609 + 302500 = 14897^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 222223109 - 2⁴ = 222223093 is a prime.

It is a super-2 number, since 2×222223109² = 98766220347251762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222223189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111554 + 111111555.

It is an arithmetic number, because the mean of its divisors is an integer number (111111555).

Almost surely, 2^222223109 is an apocalyptic number.

It is an amenable number.

222223109 is a deficient number, since it is larger than the sum of its proper divisors (1).

222223109 is an equidigital number, since it uses as much as digits as its factorization.

222223109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 222223109 is about 14907.1495933998. The cubic root of 222223109 is about 605.7076699674.

The spelling of 222223109 in words is "two hundred twenty-two million, two hundred twenty-three thousand, one hundred nine".