22205235 has 32 divisors (see below), whose sum is σ = 39932928. Its totient is φ = 10454400.

The previous prime is 22205203. The next prime is 22205237. The reversal of 22205235 is 53250222.

It is not a de Polignac number, because 22205235 - 2⁵ = 22205203 is a prime.

It is a super-2 number, since 2×22205235² = 986144922810450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22205237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2010 + ... + 6960.

It is an arithmetic number, because the mean of its divisors is an integer number (1247904).

Almost surely, 2^22205235 is an apocalyptic number.

22205235 is a deficient number, since it is larger than the sum of its proper divisors (17727693).

22205235 is a wasteful number, since it uses less digits than its factorization.

22205235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22205235 is about 4712.2430964457. The cubic root of 22205235 is about 281.0725656150.

Adding to 22205235 its reverse (53250222), we get a palindrome (75455457).

The spelling of 22205235 in words is "twenty-two million, two hundred five thousand, two hundred thirty-five".