222002189 has 2 divisors, whose sum is σ = 222002190. Its totient is φ = 222002188.

The previous prime is 222002177. The next prime is 222002219. The reversal of 222002189 is 981200222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199515625 + 22486564 = 14125^2 + 4742^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002189 - 2⁸ = 222001933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001094 + 111001095.

It is an arithmetic number, because the mean of its divisors is an integer number (111001095).

Almost surely, 2^222002189 is an apocalyptic number.

It is an amenable number.

222002189 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002189 is an equidigital number, since it uses as much as digits as its factorization.

222002189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 222002189 is about 14899.7378836005. The cubic root of 222002189 is about 605.5068848101.

It can be divided in two parts, 22200 and 2189, that added together give a cube (24389 = 29³).

The spelling of 222002189 in words is "two hundred twenty-two million, two thousand, one hundred eighty-nine".