22163223305 has 4 divisors (see below), whose sum is σ = 26595867972. Its totient is φ = 17730578640.

The previous prime is 22163223287. The next prime is 22163223319. The reversal of 22163223305 is 50332236122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6523469824 + 15639753481 = 80768^2 + 125059^2 .

It is not a de Polignac number, because 22163223305 - 2²⁶ = 22096114441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2216322326 + ... + 2216322335.

It is an arithmetic number, because the mean of its divisors is an integer number (6648966993).

Almost surely, 2^22163223305 is an apocalyptic number.

It is an amenable number.

22163223305 is a deficient number, since it is larger than the sum of its proper divisors (4432644667).

22163223305 is an equidigital number, since it uses as much as digits as its factorization.

22163223305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432644666.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 22163223305 its reverse (50332236122), we get a palindrome (72495459427).

The spelling of 22163223305 in words is "twenty-two billion, one hundred sixty-three million, two hundred twenty-three thousand, three hundred five".