3220205 has 16 divisors (see below), whose sum is σ = 4022784. Its totient is φ = 2472960.

The previous prime is 3220201. The next prime is 3220211. The reversal of 3220205 is 5020223.

3220205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3220205 - 2² = 3220201 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 3220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16589 + ... + 16781.

It is an arithmetic number, because the mean of its divisors is an integer number (251424).

Almost surely, 2^3220205 is an apocalyptic number.

It is an amenable number.

3220205 is a deficient number, since it is larger than the sum of its proper divisors (802579).

3220205 is a wasteful number, since it uses less digits than its factorization.

3220205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 3220205 is about 1794.4929646003. The cubic root of 3220205 is about 147.6707588600.

Adding to 3220205 its reverse (5020223), we get a palindrome (8240428).

The spelling of 3220205 in words is "three million, two hundred twenty thousand, two hundred five".