222189044 has 48 divisors (see below), whose sum is σ = 493032960. Its totient is φ = 85092960.

The previous prime is 222189043. The next prime is 222189047. The reversal of 222189044 is 440981222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222189044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222189043) 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 15 ways as a sum of consecutive naturals, for example, 12059 + ... + 24285.

It is an arithmetic number, because the mean of its divisors is an integer number (10271520).

Almost surely, 2^222189044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222189044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246516480).

222189044 is an abundant number, since it is smaller than the sum of its proper divisors (270843916).

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

222189044 is a wasteful number, since it uses less digits than its factorization.

222189044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308 (or 12306 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 222189044 is about 14906.0069770546. The cubic root of 222189044 is about 605.6767183616.

The spelling of 222189044 in words is "two hundred twenty-two million, one hundred eighty-nine thousand, forty-four".