22108105 has 4 divisors (see below), whose sum is σ = 26529732. Its totient is φ = 17686480.

The previous prime is 22108087. The next prime is 22108127. The reversal of 22108105 is 50180122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15264649 + 6843456 = 3907^2 + 2616^2 .

It is not a de Polignac number, because 22108105 - 2¹⁹ = 21583817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2210806 + ... + 2210815.

It is an arithmetic number, because the mean of its divisors is an integer number (6632433).

Almost surely, 2^22108105 is an apocalyptic number.

It is an amenable number.

22108105 is a deficient number, since it is larger than the sum of its proper divisors (4421627).

22108105 is an equidigital number, since it uses as much as digits as its factorization.

22108105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421626.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 22108105 is about 4701.9256693402. The cubic root of 22108105 is about 280.6621446591.

Adding to 22108105 its reverse (50180122), we get a palindrome (72288227).

The spelling of 22108105 in words is "twenty-two million, one hundred eight thousand, one hundred five".