3220020205 has 4 divisors (see below), whose sum is σ = 3864024252. Its totient is φ = 2576016160.

The previous prime is 3220020173. The next prime is 3220020211. The reversal of 3220020205 is 5020200223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5020200223 = 32027 ⋅156749.

It can be written as a sum of positive squares in 2 ways, for example, as 701084484 + 2518935721 = 26478^2 + 50189^2 .

It is not a de Polignac number, because 3220020205 - 2⁵ = 3220020173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322002016 + ... + 322002025.

It is an arithmetic number, because the mean of its divisors is an integer number (966006063).

Almost surely, 2^3220020205 is an apocalyptic number.

It is an amenable number.

3220020205 is a deficient number, since it is larger than the sum of its proper divisors (644004047).

3220020205 is an equidigital number, since it uses as much as digits as its factorization.

3220020205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644004046.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 3220020205 is about 56745.2218693345. The cubic root of 3220020205 is about 1476.6793405644.

Adding to 3220020205 its reverse (5020200223), we get a palindrome (8240220428).

The spelling of 3220020205 in words is "three billion, two hundred twenty million, twenty thousand, two hundred five".