222031189 has 2 divisors, whose sum is σ = 222031190. Its totient is φ = 222031188.

The previous prime is 222031181. The next prime is 222031217. The reversal of 222031189 is 981130222.

It is an a-pointer prime, because the next prime (222031217) can be obtained adding 222031189 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120626289 + 101404900 = 10983^2 + 10070^2 .

It is a cyclic number.

It is not a de Polignac number, because 222031189 - 2³ = 222031181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222031181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111015594 + 111015595.

It is an arithmetic number, because the mean of its divisors is an integer number (111015595).

Almost surely, 2^222031189 is an apocalyptic number.

It is an amenable number.

222031189 is a deficient number, since it is larger than the sum of its proper divisors (1).

222031189 is an equidigital number, since it uses as much as digits as its factorization.

222031189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 222031189 is about 14900.7110233036. The cubic root of 222031189 is about 605.5332493175.

The spelling of 222031189 in words is "two hundred twenty-two million, thirty-one thousand, one hundred eighty-nine".