22004113 has 4 divisors (see below), whose sum is σ = 22014180. Its totient is φ = 21994048.

The previous prime is 22004111. The next prime is 22004119. The reversal of 22004113 is 31140022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4464769 + 17539344 = 2113^2 + 4188^2 .

It is a cyclic number.

It is not a de Polignac number, because 22004113 - 2¹ = 22004111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22004093 and 22004102.

It is not an unprimeable number, because it can be changed into a prime (22004111) 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, 220 + ... + 6637.

It is an arithmetic number, because the mean of its divisors is an integer number (5503545).

Almost surely, 2^22004113 is an apocalyptic number.

It is an amenable number.

22004113 is a deficient number, since it is larger than the sum of its proper divisors (10067).

22004113 is an equidigital number, since it uses as much as digits as its factorization.

22004113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22004113 is about 4690.8541866061. The cubic root of 22004113 is about 280.2213937771.

Adding to 22004113 its reverse (31140022), we get a palindrome (53144135).

The spelling of 22004113 in words is "twenty-two million, four thousand, one hundred thirteen".