22104321 has 4 divisors (see below), whose sum is σ = 29472432. Its totient is φ = 14736212.

The previous prime is 22104319. The next prime is 22104331. The reversal of 22104321 is 12340122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22104321 - 2¹ = 22104319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22104321.

It is not an unprimeable number, because it can be changed into a prime (22104331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684051 + ... + 3684056.

It is an arithmetic number, because the mean of its divisors is an integer number (7368108).

Almost surely, 2^22104321 is an apocalyptic number.

It is an amenable number.

22104321 is a deficient number, since it is larger than the sum of its proper divisors (7368111).

22104321 is an equidigital number, since it uses as much as digits as its factorization.

22104321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368110.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22104321 is about 4701.5232637944. The cubic root of 22104321 is about 280.6461311330.

Adding to 22104321 its reverse (12340122), we get a palindrome (34444443).

The spelling of 22104321 in words is "twenty-two million, one hundred four thousand, three hundred twenty-one".