222212222189 has 2 divisors, whose sum is σ = 222212222190. Its totient is φ = 222212222188.

The previous prime is 222212222173. The next prime is 222212222237. The reversal of 222212222189 is 981222212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213952502500 + 8259719689 = 462550^2 + 90883^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212222189 - 2⁴ = 222212222173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222212222159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111106111094 + 111106111095.

It is an arithmetic number, because the mean of its divisors is an integer number (111106111095).

Almost surely, 2^222212222189 is an apocalyptic number.

It is an amenable number.

222212222189 is a deficient number, since it is larger than the sum of its proper divisors (1).

222212222189 is an equidigital number, since it uses as much as digits as its factorization.

222212222189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The spelling of 222212222189 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eighty-nine".