223222222 has 32 divisors (see below), whose sum is σ = 380505600. Its totient is φ = 97640928.

The previous prime is 223222217. The next prime is 223222229. The reversal of 223222222 is 222222322.

It is a super-3 number, since 3×223222222³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

223222222 is a modest number, since divided by 22222 gives 2232 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 223222222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223222229) 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, 20943 + ... + 29749.

It is an arithmetic number, because the mean of its divisors is an integer number (11890800).

Almost surely, 2^223222222 is an apocalyptic number.

223222222 is a deficient number, since it is larger than the sum of its proper divisors (157283378).

223222222 is a wasteful number, since it uses less digits than its factorization.

223222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880.

The product of its digits is 768, while the sum is 19.

The square root of 223222222 is about 14940.6232132398. The cubic root of 223222222 is about 606.6140649290.

Adding to 223222222 its reverse (222222322), we get a palindrome (445444544).

The spelling of 223222222 in words is "two hundred twenty-three million, two hundred twenty-two thousand, two hundred twenty-two".