22301321 has 12 divisors (see below), whose sum is σ = 26024832. Its totient is φ = 19054728.

The previous prime is 22301317. The next prime is 22301339. The reversal of 22301321 is 12310322.

It is a happy number.

It is not a de Polignac number, because 22301321 - 2² = 22301317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22301296 and 22301305.

It is not an unprimeable number, because it can be changed into a prime (22301311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22196 + ... + 23178.

It is an arithmetic number, because the mean of its divisors is an integer number (2168736).

Almost surely, 2^22301321 is an apocalyptic number.

It is an amenable number.

22301321 is a deficient number, since it is larger than the sum of its proper divisors (3723511).

22301321 is an equidigital number, since it uses as much as digits as its factorization.

22301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22301321 is about 4722.4274478281. The cubic root of 22301321 is about 281.4773992352.

Adding to 22301321 its reverse (12310322), we get a palindrome (34611643).

Subtracting from 22301321 its reverse (12310322), we obtain a palindrome (9990999).

It can be divided in two parts, 22301 and 321, that added together give a palindrome (22622).

The spelling of 22301321 in words is "twenty-two million, three hundred one thousand, three hundred twenty-one".