222031224 has 24 divisors (see below), whose sum is σ = 601334760. Its totient is φ = 74010384.

The previous prime is 222031223. The next prime is 222031241. The reversal of 222031224 is 422130222.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222031197 and 222031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222031223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1541812 + ... + 1541955.

It is an arithmetic number, because the mean of its divisors is an integer number (25055615).

Almost surely, 2^222031224 is an apocalyptic number.

222031224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222031224 is an abundant number, since it is smaller than the sum of its proper divisors (379303536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222031224 is a wasteful number, since it uses less digits than its factorization.

222031224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083779 (or 3083772 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222031224 is about 14900.7121977441. The cubic root of 222031224 is about 605.5332811354.

Adding to 222031224 its reverse (422130222), we get a palindrome (644161446).

The spelling of 222031224 in words is "two hundred twenty-two million, thirty-one thousand, two hundred twenty-four".