222221324 has 24 divisors (see below), whose sum is σ = 420420000. Its totient is φ = 102167424.

The previous prime is 222221309. The next prime is 222221327. The reversal of 222221324 is 423122222.

222221324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222221296 and 222221305.

It is not an unprimeable number, because it can be changed into a prime (222221327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5552 + ... + 21800.

It is an arithmetic number, because the mean of its divisors is an integer number (17517500).

Almost surely, 2^222221324 is an apocalyptic number.

It is an amenable number.

222221324 is a deficient number, since it is larger than the sum of its proper divisors (198198676).

222221324 is a wasteful number, since it uses less digits than its factorization.

222221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529 (or 16527 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 222221324 is about 14907.0897226789. The cubic root of 222221324 is about 605.7060481872.

Adding to 222221324 its reverse (423122222), we get a palindrome (645343546).

The spelling of 222221324 in words is "two hundred twenty-two million, two hundred twenty-one thousand, three hundred twenty-four".