22222422169 has 2 divisors, whose sum is σ = 22222422170. Its totient is φ = 22222422168.

The previous prime is 22222422161. The next prime is 22222422247. The reversal of 22222422169 is 96122422222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20645379225 + 1577042944 = 143685^2 + 39712^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222422169 - 2³ = 22222422161 is a prime.

It is a super-2 number, since 2×22222422169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22222422161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111211084 + 11111211085.

It is an arithmetic number, because the mean of its divisors is an integer number (11111211085).

Almost surely, 2^22222422169 is an apocalyptic number.

It is an amenable number.

22222422169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222422169 is an equidigital number, since it uses as much as digits as its factorization.

22222422169 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 22222422169 in words is "twenty-two billion, two hundred twenty-two million, four hundred twenty-two thousand, one hundred sixty-nine".