222144223 has 4 divisors (see below), whose sum is σ = 253879120. Its totient is φ = 190409328.

The previous prime is 222144211. The next prime is 222144227. The reversal of 222144223 is 322441222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222144223 - 2⁹ = 222143711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222144194 and 222144203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222144227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15867438 + ... + 15867451.

It is an arithmetic number, because the mean of its divisors is an integer number (63469780).

Almost surely, 2^222144223 is an apocalyptic number.

222144223 is a deficient number, since it is larger than the sum of its proper divisors (31734897).

222144223 is an equidigital number, since it uses as much as digits as its factorization.

222144223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31734896.

The product of its digits is 1536, while the sum is 22.

The square root of 222144223 is about 14904.5034469452. The cubic root of 222144223 is about 605.6359889879.

Adding to 222144223 its reverse (322441222), we get a palindrome (544585445).

The spelling of 222144223 in words is "two hundred twenty-two million, one hundred forty-four thousand, two hundred twenty-three".