222022189 has 2 divisors, whose sum is σ = 222022190. Its totient is φ = 222022188.

The previous prime is 222022187. The next prime is 222022211. The reversal of 222022189 is 981220222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182709289 + 39312900 = 13517^2 + 6270^2 .

It is a cyclic number.

It is not a de Polignac number, because 222022189 - 2¹ = 222022187 is a prime.

Together with 222022187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222022181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111011094 + 111011095.

It is an arithmetic number, because the mean of its divisors is an integer number (111011095).

Almost surely, 2^222022189 is an apocalyptic number.

It is an amenable number.

222022189 is a deficient number, since it is larger than the sum of its proper divisors (1).

222022189 is an equidigital number, since it uses as much as digits as its factorization.

222022189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 222022189 is about 14900.4090212316. The cubic root of 222022189 is about 605.5250674747.

The spelling of 222022189 in words is "two hundred twenty-two million, twenty-two thousand, one hundred eighty-nine".