22204111 has 4 divisors (see below), whose sum is σ = 22969800. Its totient is φ = 21438424.

The previous prime is 22204109. The next prime is 22204121. The reversal of 22204111 is 11140222.

It is a happy number.

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

It is not a de Polignac number, because 22204111 - 2¹ = 22204109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22204091 and 22204100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382801 + ... + 382858.

It is an arithmetic number, because the mean of its divisors is an integer number (5742450).

Almost surely, 2^22204111 is an apocalyptic number.

22204111 is a deficient number, since it is larger than the sum of its proper divisors (765689).

22204111 is an equidigital number, since it uses as much as digits as its factorization.

22204111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765688.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 22204111 is about 4712.1238311403. The cubic root of 22204111 is about 281.0678230262.

Adding to 22204111 its reverse (11140222), we get a palindrome (33344333).

The spelling of 22204111 in words is "twenty-two million, two hundred four thousand, one hundred eleven".