222222222169 has 2 divisors, whose sum is σ = 222222222170. Its totient is φ = 222222222168.

The previous prime is 222222222139. The next prime is 222222222301. The reversal of 222222222169 is 961222222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221558490000 + 663732169 = 470700^2 + 25763^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222222169 - 2¹⁵ = 222222189401 is a prime.

It is a super-2 number, since 2×222222222169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222222222139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111111084 + 111111111085.

It is an arithmetic number, because the mean of its divisors is an integer number (111111111085).

Almost surely, 2^222222222169 is an apocalyptic number.

It is an amenable number.

222222222169 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222222169 is an equidigital number, since it uses as much as digits as its factorization.

222222222169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The spelling of 222222222169 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred sixty-nine".