22213305 has 32 divisors (see below), whose sum is σ = 41817600. Its totient is φ = 11149056.

The previous prime is 22213259. The next prime is 22213313. The reversal of 22213305 is 50331222.

It is not a de Polignac number, because 22213305 - 2⁸ = 22213049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2545 + ... + 7134.

It is an arithmetic number, because the mean of its divisors is an integer number (1306800).

Almost surely, 2^22213305 is an apocalyptic number.

It is an amenable number.

22213305 is a deficient number, since it is larger than the sum of its proper divisors (19604295).

22213305 is a wasteful number, since it uses less digits than its factorization.

22213305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9710 (or 9704 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22213305 is about 4713.0992987630. The cubic root of 22213305 is about 281.1066113536.

Adding to 22213305 its reverse (50331222), we get a palindrome (72544527).

The spelling of 22213305 in words is "twenty-two million, two hundred thirteen thousand, three hundred five".