222221322 has 24 divisors (see below), whose sum is σ = 481780260. Its totient is φ = 74027520.

The previous prime is 222221309. The next prime is 222221327. The reversal of 222221322 is 223122222.

222221322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 215825481 + 6395841 = 14691^2 + 2529^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222221295 and 222221304.

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 11 ways as a sum of consecutive naturals, for example, 38122 + ... + 43562.

Almost surely, 2^222221322 is an apocalyptic number.

222221322 is an abundant number, since it is smaller than the sum of its proper divisors (259558938).

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

222221322 is a wasteful number, since it uses less digits than its factorization.

222221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718 (or 7715 counting only the distinct ones).

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

The square root of 222221322 is about 14907.0896555968. The cubic root of 222221322 is about 605.7060463701.

Adding to 222221322 its reverse (223122222), we get a palindrome (445343544).

The spelling of 222221322 in words is "two hundred twenty-two million, two hundred twenty-one thousand, three hundred twenty-two".