222189975 has 36 divisors (see below), whose sum is σ = 454822576. Its totient is φ = 101571840.

The previous prime is 222189973. The next prime is 222189977. The reversal of 222189975 is 579981222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222189973) and next prime (222189977).

It is not a de Polignac number, because 222189975 - 2¹ = 222189973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222189975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222189973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 68962 + ... + 72111.

Almost surely, 2^222189975 is an apocalyptic number.

222189975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

222189975 is an abundant number, since it is smaller than the sum of its proper divisors (232632601).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222189975 is a wasteful number, since it uses less digits than its factorization.

222189975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141096 (or 141088 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 222189975 is about 14906.0382060425. The cubic root of 222189975 is about 605.6775643143.

The spelling of 222189975 in words is "two hundred twenty-two million, one hundred eighty-nine thousand, nine hundred seventy-five".