222312444 has 48 divisors (see below), whose sum is σ = 532051968. Its totient is φ = 72214848.

The previous prime is 222312443. The next prime is 222312473. The reversal of 222312444 is 444213222.

222312444 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

222312444 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222312443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155517 + ... + 156939.

It is an arithmetic number, because the mean of its divisors is an integer number (11084416).

Almost surely, 2^222312444 is an apocalyptic number.

It is an amenable number.

222312444 is an abundant number, since it is smaller than the sum of its proper divisors (309739524).

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

222312444 is a wasteful number, since it uses less digits than its factorization.

222312444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 1752 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 222312444 is about 14910.1456733326. The cubic root of 222312444 is about 605.7888251116.

Adding to 222312444 its reverse (444213222), we get a palindrome (666525666).

The spelling of 222312444 in words is "two hundred twenty-two million, three hundred twelve thousand, four hundred forty-four".