22222305 has 96 divisors (see below), whose sum is σ = 47923200. Its totient is φ = 9300096.

The previous prime is 22222273. The next prime is 22222327. The reversal of 22222305 is 50322222.

It is not a de Polignac number, because 22222305 - 2⁵ = 22222273 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 281256 + ... + 281334.

It is an arithmetic number, because the mean of its divisors is an integer number (499200).

Almost surely, 2^22222305 is an apocalyptic number.

It is an amenable number.

22222305 is an abundant number, since it is smaller than the sum of its proper divisors (25700895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222305 is a wasteful number, since it uses less digits than its factorization.

22222305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22222305 is about 4714.0539878113. The cubic root of 22222305 is about 281.1445708542.

Adding to 22222305 its reverse (50322222), we get a palindrome (72544527).

The spelling of 22222305 in words is "twenty-two million, two hundred twenty-two thousand, three hundred five".