22000105 has 4 divisors (see below), whose sum is σ = 26400132. Its totient is φ = 17600080.

The previous prime is 22000103. The next prime is 22000109. The reversal of 22000105 is 50100022.

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 15904144 + 6095961 = 3988^2 + 2469^2 .

It is not a de Polignac number, because 22000105 - 2¹ = 22000103 is a prime.

It is a super-2 number, since 2×22000105² = 968009240022050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000091 and 22000100.

It is not an unprimeable number, because it can be changed into a prime (22000103) 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, 2200006 + ... + 2200015.

It is an arithmetic number, because the mean of its divisors is an integer number (6600033).

Almost surely, 2^22000105 is an apocalyptic number.

It is an amenable number.

22000105 is a deficient number, since it is larger than the sum of its proper divisors (4400027).

22000105 is an equidigital number, since it uses as much as digits as its factorization.

22000105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400026.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 22000105 is about 4690.4269528477. The cubic root of 22000105 is about 280.2043788438.

Adding to 22000105 its reverse (50100022), we get a palindrome (72100127).

The spelling of 22000105 in words is "twenty-two million, one hundred five", and thus it is an aban number.