2222321 has 2 divisors, whose sum is σ = 2222322. Its totient is φ = 2222320.

The previous prime is 2222317. The next prime is 2222327. The reversal of 2222321 is 1232222.

2222321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 829921 = 1180^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222321 - 2² = 2222317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222296 and 2222305.

It is not a weakly prime, because it can be changed into another prime (2222327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111160 + 1111161.

It is an arithmetic number, because the mean of its divisors is an integer number (1111161).

2^2222321 is an apocalyptic number.

It is an amenable number.

2222321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222321 is an equidigital number, since it uses as much as digits as its factorization.

2222321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 14.

The square root of 2222321 is about 1490.7451157056. The cubic root of 2222321 is about 130.4975215199.

Adding to 2222321 its reverse (1232222), we get a palindrome (3454543).

Subtracting from 2222321 its reverse (1232222), we obtain a palindrome (990099).

The spelling of 2222321 in words is "two million, two hundred twenty-two thousand, three hundred twenty-one".