222330321 has 24 divisors (see below), whose sum is σ = 327270944. Its totient is φ = 145411200.

The previous prime is 222330319. The next prime is 222330371. The reversal of 222330321 is 123033222.

It is a happy number.

222330321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222330321 - 2¹ = 222330319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222330294 and 222330303.

It is not an unprimeable number, because it can be changed into a prime (222330371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184521 + ... + 185721.

Almost surely, 2^222330321 is an apocalyptic number.

It is an amenable number.

222330321 is a deficient number, since it is larger than the sum of its proper divisors (104940623).

222330321 is a wasteful number, since it uses less digits than its factorization.

222330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 222330321 is about 14910.7451524060. The cubic root of 222330321 is about 605.8050626140.

Adding to 222330321 its reverse (123033222), we get a palindrome (345363543).

The spelling of 222330321 in words is "two hundred twenty-two million, three hundred thirty thousand, three hundred twenty-one".