22106005 has 4 divisors (see below), whose sum is σ = 26527212. Its totient is φ = 17684800.

The previous prime is 22106003. The next prime is 22106039. The reversal of 22106005 is 50060122.

It is a happy number.

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 11229201 + 10876804 = 3351^2 + 3298^2 .

It is not a de Polignac number, because 22106005 - 2¹ = 22106003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22106005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22106003) by changing a digit.

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, 2210596 + ... + 2210605.

It is an arithmetic number, because the mean of its divisors is an integer number (6631803).

Almost surely, 2^22106005 is an apocalyptic number.

It is an amenable number.

22106005 is a deficient number, since it is larger than the sum of its proper divisors (4421207).

22106005 is an equidigital number, since it uses as much as digits as its factorization.

22106005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421206.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 22106005 is about 4701.7023512766. The cubic root of 22106005 is about 280.6532578856.

Adding to 22106005 its reverse (50060122), we get a palindrome (72166127).

The spelling of 22106005 in words is "twenty-two million, one hundred six thousand, five".