222244664 has 8 divisors (see below), whose sum is σ = 416708760. Its totient is φ = 111122328.

The previous prime is 222244663. The next prime is 222244679. The reversal of 222244664 is 466442222.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 222244664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222244663) 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 as a sum of consecutive naturals, namely, 13890284 + ... + 13890299.

It is an arithmetic number, because the mean of its divisors is an integer number (52088595).

Almost surely, 2^222244664 is an apocalyptic number.

It is an amenable number.

222244664 is a deficient number, since it is larger than the sum of its proper divisors (194464096).

222244664 is a wasteful number, since it uses less digits than its factorization.

222244664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27780589 (or 27780585 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 222244664 is about 14907.8725511053. The cubic root of 222244664 is about 605.7272532993.

Adding to 222244664 its reverse (466442222), we get a palindrome (688686886).

The spelling of 222244664 in words is "two hundred twenty-two million, two hundred forty-four thousand, six hundred sixty-four".