223222144 has 16 divisors (see below), whose sum is σ = 444700620. Its totient is φ = 111611008.

The previous prime is 223222141. The next prime is 223222151. The reversal of 223222144 is 441222322.

223222144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×223222144³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223222141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871834 + ... + 872089.

Almost surely, 2^223222144 is an apocalyptic number.

It is an amenable number.

223222144 is a deficient number, since it is larger than the sum of its proper divisors (221478476).

223222144 is an equidigital number, since it uses as much as digits as its factorization.

223222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743937 (or 1743925 counting only the distinct ones).

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

The square root of 223222144 is about 14940.6206029067. The cubic root of 223222144 is about 606.6139942731.

Adding to 223222144 its reverse (441222322), we get a palindrome (664444466).

The spelling of 223222144 in words is "two hundred twenty-three million, two hundred twenty-two thousand, one hundred forty-four".