220211105 has 4 divisors (see below), whose sum is σ = 264253332. Its totient is φ = 176168880.

The previous prime is 220211051. The next prime is 220211113. The reversal of 220211105 is 501112022.

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 133795489 + 86415616 = 11567^2 + 9296^2 .

It is not a de Polignac number, because 220211105 - 2⁸ = 220210849 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 220211105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22021106 + ... + 22021115.

It is an arithmetic number, because the mean of its divisors is an integer number (66063333).

Almost surely, 2^220211105 is an apocalyptic number.

It is an amenable number.

220211105 is a deficient number, since it is larger than the sum of its proper divisors (44042227).

220211105 is an equidigital number, since it uses as much as digits as its factorization.

220211105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44042226.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 220211105 is about 14839.5116159529. The cubic root of 220211105 is about 603.8741030014.

Adding to 220211105 its reverse (501112022), we get a palindrome (721323127).

The spelling of 220211105 in words is "two hundred twenty million, two hundred eleven thousand, one hundred five".