22010165 has 4 divisors (see below), whose sum is σ = 26412204. Its totient is φ = 17608128.

The previous prime is 22010141. The next prime is 22010167. The reversal of 22010165 is 56101022.

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 17023876 + 4986289 = 4126^2 + 2233^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010165 - 2⁸ = 22009909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010167) 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, 2201012 + ... + 2201021.

It is an arithmetic number, because the mean of its divisors is an integer number (6603051).

Almost surely, 2^22010165 is an apocalyptic number.

It is an amenable number.

22010165 is a deficient number, since it is larger than the sum of its proper divisors (4402039).

22010165 is an equidigital number, since it uses as much as digits as its factorization.

22010165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402038.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 22010165 is about 4691.4992273260. The cubic root of 22010165 is about 280.2470820718.

Adding to 22010165 its reverse (56101022), we get a palindrome (78111187).

The spelling of 22010165 in words is "twenty-two million, ten thousand, one hundred sixty-five".