222222244 has 24 divisors (see below), whose sum is σ = 404019000. Its totient is φ = 106821120.

The previous prime is 222222241. The next prime is 222222277. The reversal of 222222244 is 442222222.

It can be written as a sum of positive squares in 4 ways, for example, as 56070144 + 166152100 = 7488^2 + 12890^2 .

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

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (222222241) 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 7 ways as a sum of consecutive naturals, for example, 23982 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (16834125).

Almost surely, 2^222222244 is an apocalyptic number.

It is an amenable number.

222222244 is a deficient number, since it is larger than the sum of its proper divisors (181796756).

222222244 is a wasteful number, since it uses less digits than its factorization.

222222244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223 (or 8221 counting only the distinct ones).

The product of its digits is 2048, while the sum is 22.

The square root of 222222244 is about 14907.1205804475. The cubic root of 222222244 is about 605.7068840638.

Subtracting from 222222244 its sum of digits (22), we obtain a palindrome (222222222).

Adding to 222222244 its reverse (442222222), we get a palindrome (664444466).

The spelling of 222222244 in words is "two hundred twenty-two million, two hundred twenty-two thousand, two hundred forty-four".