22255321 has 4 divisors (see below), whose sum is σ = 24278544. Its totient is φ = 20232100.

The previous prime is 22255273. The next prime is 22255339. The reversal of 22255321 is 12355222.

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 22255321 - 2¹³ = 22247129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22255292 and 22255301.

It is not an unprimeable number, because it can be changed into a prime (22255361) 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, 1011595 + ... + 1011616.

It is an arithmetic number, because the mean of its divisors is an integer number (6069636).

Almost surely, 2^22255321 is an apocalyptic number.

It is an amenable number.

22255321 is a deficient number, since it is larger than the sum of its proper divisors (2023223).

22255321 is a wasteful number, since it uses less digits than its factorization.

22255321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023222.

The product of its digits is 1200, while the sum is 22.

The square root of 22255321 is about 4717.5545571832. The cubic root of 22255321 is about 281.2837354760.

Subtracting from 22255321 its reverse (12355222), we obtain a palindrome (9900099).

The spelling of 22255321 in words is "twenty-two million, two hundred fifty-five thousand, three hundred twenty-one".