220104205 has 4 divisors (see below), whose sum is σ = 264125052. Its totient is φ = 176083360.

The previous prime is 220104197. The next prime is 220104221. The reversal of 220104205 is 502401022.

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 139499721 + 80604484 = 11811^2 + 8978^2 .

It is not a de Polignac number, because 220104205 - 2³ = 220104197 is a prime.

It is a super-2 number, since 2×220104205² = 96891722117364050, which contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 22010416 + ... + 22010425.

It is an arithmetic number, because the mean of its divisors is an integer number (66031263).

Almost surely, 2^220104205 is an apocalyptic number.

It is an amenable number.

220104205 is a deficient number, since it is larger than the sum of its proper divisors (44020847).

220104205 is an equidigital number, since it uses as much as digits as its factorization.

220104205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44020846.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 220104205 is about 14835.9093081617. The cubic root of 220104205 is about 603.7763716446.

Adding to 220104205 its reverse (502401022), we get a palindrome (722505227).

The spelling of 220104205 in words is "two hundred twenty million, one hundred four thousand, two hundred five".