222332321 has 2 divisors, whose sum is σ = 222332322. Its totient is φ = 222332320.

The previous prime is 222332309. The next prime is 222332339. The reversal of 222332321 is 123233222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188238400 + 34093921 = 13720^2 + 5839^2 .

It is a cyclic number.

It is not a de Polignac number, because 222332321 - 2¹⁴ = 222315937 is a prime.

It is a super-2 number, since 2×222332321² = 98863321922494082, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222332293 and 222332302.

It is not a weakly prime, because it can be changed into another prime (222332221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111166160 + 111166161.

It is an arithmetic number, because the mean of its divisors is an integer number (111166161).

Almost surely, 2^222332321 is an apocalyptic number.

It is an amenable number.

222332321 is a deficient number, since it is larger than the sum of its proper divisors (1).

222332321 is an equidigital number, since it uses as much as digits as its factorization.

222332321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 20.

The square root of 222332321 is about 14910.8122179846. The cubic root of 222332321 is about 605.8068791401.

Adding to 222332321 its reverse (123233222), we get a palindrome (345565543).

Subtracting from 222332321 its reverse (123233222), we obtain a palindrome (99099099).

The spelling of 222332321 in words is "two hundred twenty-two million, three hundred thirty-two thousand, three hundred twenty-one".