22204123 has 4 divisors (see below), whose sum is σ = 22231800. Its totient is φ = 22176448.

The previous prime is 22204121. The next prime is 22204139. The reversal of 22204123 is 32140222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32140222 = 2 ⋅16070111.

It is a cyclic number.

It is not a de Polignac number, because 22204123 - 2¹ = 22204121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22204097 and 22204106.

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, 12598 + ... + 14251.

It is an arithmetic number, because the mean of its divisors is an integer number (5557950).

Almost surely, 2^22204123 is an apocalyptic number.

22204123 is a deficient number, since it is larger than the sum of its proper divisors (27677).

22204123 is an equidigital number, since it uses as much as digits as its factorization.

22204123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27676.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22204123 is about 4712.1251044513. The cubic root of 22204123 is about 281.0678736597.

Adding to 22204123 its reverse (32140222), we get a palindrome (54344345).

The spelling of 22204123 in words is "twenty-two million, two hundred four thousand, one hundred twenty-three".