222431224 has 8 divisors (see below), whose sum is σ = 417058560. Its totient is φ = 111215608.

The previous prime is 222431201. The next prime is 222431227. The reversal of 222431224 is 422134222.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 222431195 and 222431204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222431227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13901944 + ... + 13901959.

It is an arithmetic number, because the mean of its divisors is an integer number (52132320).

Almost surely, 2^222431224 is an apocalyptic number.

It is an amenable number.

222431224 is a deficient number, since it is larger than the sum of its proper divisors (194627336).

222431224 is a wasteful number, since it uses less digits than its factorization.

222431224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27803909 (or 27803905 counting only the distinct ones).

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

The square root of 222431224 is about 14914.1283352397. The cubic root of 222431224 is about 605.8966954944.

Adding to 222431224 its reverse (422134222), we get a palindrome (644565446).

The spelling of 222431224 in words is "two hundred twenty-two million, four hundred thirty-one thousand, two hundred twenty-four".