22105005 has 16 divisors (see below), whose sum is σ = 38088960. Its totient is φ = 10882368.

The previous prime is 22104991. The next prime is 22105043. The reversal of 22105005 is 50050122.

It is not a de Polignac number, because 22105005 - 2⁸ = 22104749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 56485 + ... + 56874.

It is an arithmetic number, because the mean of its divisors is an integer number (2380560).

Almost surely, 2^22105005 is an apocalyptic number.

It is an amenable number.

22105005 is a deficient number, since it is larger than the sum of its proper divisors (15983955).

22105005 is a wasteful number, since it uses less digits than its factorization.

22105005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113380.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 22105005 is about 4701.5960056134. The cubic root of 22105005 is about 280.6490258909.

Adding to 22105005 its reverse (50050122), we get a palindrome (72155127).

The spelling of 22105005 in words is "twenty-two million, one hundred five thousand, five".