22204641 has 12 divisors (see below), whose sum is σ = 30318288. Its totient is φ = 14455224.

The previous prime is 22204639. The next prime is 22204661. The reversal of 22204641 is 14640222.

It is not a de Polignac number, because 22204641 - 2¹ = 22204639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22204621) 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 11 ways as a sum of consecutive naturals, for example, 3546 + ... + 7548.

It is an arithmetic number, because the mean of its divisors is an integer number (2526524).

Almost surely, 2^22204641 is an apocalyptic number.

It is an amenable number.

22204641 is a deficient number, since it is larger than the sum of its proper divisors (8113647).

22204641 is an equidigital number, since it uses as much as digits as its factorization.

22204641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092 (or 4049 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 22204641 is about 4712.1800687155. The cubic root of 22204641 is about 281.0700593202.

Adding to 22204641 its reverse (14640222), we get a palindrome (36844863).

The spelling of 22204641 in words is "twenty-two million, two hundred four thousand, six hundred forty-one".