22330321 has 8 divisors (see below), whose sum is σ = 24189480. Its totient is φ = 20491392.

The previous prime is 22330313. The next prime is 22330327. The reversal of 22330321 is 12303322.

It can be written as a sum of positive squares in 4 ways, for example, as 1718721 + 20611600 = 1311^2 + 4540^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22330321 - 2³ = 22330313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22330295 and 22330304.

It is not an unprimeable number, because it can be changed into a prime (22330327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2716 + ... + 7213.

It is an arithmetic number, because the mean of its divisors is an integer number (3023685).

Almost surely, 2^22330321 is an apocalyptic number.

It is an amenable number.

22330321 is a deficient number, since it is larger than the sum of its proper divisors (1859159).

22330321 is a wasteful number, since it uses less digits than its factorization.

22330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 22330321 is about 4725.4969050884. The cubic root of 22330321 is about 281.5993547745.

Adding to 22330321 its reverse (12303322), we get a palindrome (34633643).

The spelling of 22330321 in words is "twenty-two million, three hundred thirty thousand, three hundred twenty-one".