22034321 has 2 divisors, whose sum is σ = 22034322. Its totient is φ = 22034320.

The previous prime is 22034303. The next prime is 22034323. The reversal of 22034321 is 12343022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19678096 + 2356225 = 4436^2 + 1535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22034321 is a prime.

It is a super-2 number, since 2×22034321² = 971022603862082, which contains 22 as substring.

Together with 22034323, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22034321.

It is not a weakly prime, because it can be changed into another prime (22034323) 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, 11017160 + 11017161.

It is an arithmetic number, because the mean of its divisors is an integer number (11017161).

Almost surely, 2^22034321 is an apocalyptic number.

It is an amenable number.

22034321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22034321 is an equidigital number, since it uses as much as digits as its factorization.

22034321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22034321 is about 4694.0729649208. The cubic root of 22034321 is about 280.3495676503.

Adding to 22034321 its reverse (12343022), we get a palindrome (34377343).

The spelling of 22034321 in words is "twenty-two million, thirty-four thousand, three hundred twenty-one".