22234321 has 2 divisors, whose sum is σ = 22234322. Its totient is φ = 22234320.

The previous prime is 22234319. The next prime is 22234343. The reversal of 22234321 is 12343222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20830096 + 1404225 = 4564^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 22234321 - 2¹ = 22234319 is a prime.

Together with 22234319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22234361) 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, 11117160 + 11117161.

It is an arithmetic number, because the mean of its divisors is an integer number (11117161).

Almost surely, 2^22234321 is an apocalyptic number.

It is an amenable number.

22234321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22234321 is an equidigital number, since it uses as much as digits as its factorization.

22234321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 19.

The square root of 22234321 is about 4715.3283024621. The cubic root of 22234321 is about 281.1952350323.

Adding to 22234321 its reverse (12343222), we get a palindrome (34577543).

It can be divided in two parts, 222 and 34321, that added together give a palindrome (34543).

The spelling of 22234321 in words is "twenty-two million, two hundred thirty-four thousand, three hundred twenty-one".