22224513 has 4 divisors (see below), whose sum is σ = 29632688. Its totient is φ = 14816340.

The previous prime is 22224497. The next prime is 22224539. The reversal of 22224513 is 31542222.

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 not a de Polignac number, because 22224513 - 2⁴ = 22224497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22224513.

It is not an unprimeable number, because it can be changed into a prime (22224563) 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 in 3 ways as a sum of consecutive naturals, for example, 3704083 + ... + 3704088.

It is an arithmetic number, because the mean of its divisors is an integer number (7408172).

Almost surely, 2^22224513 is an apocalyptic number.

It is an amenable number.

22224513 is a deficient number, since it is larger than the sum of its proper divisors (7408175).

22224513 is an equidigital number, since it uses as much as digits as its factorization.

22224513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408174.

The product of its digits is 960, while the sum is 21.

The square root of 22224513 is about 4714.2881753240. The cubic root of 22224513 is about 281.1538820193.

Adding to 22224513 its reverse (31542222), we get a palindrome (53766735).

The spelling of 22224513 in words is "twenty-two million, two hundred twenty-four thousand, five hundred thirteen".