220205205 has 24 divisors (see below), whose sum is σ = 416388960. Its totient is φ = 106765920.

The previous prime is 220205201. The next prime is 220205239. The reversal of 220205205 is 502502022.

It is not a de Polignac number, because 220205205 - 2² = 220205201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220205201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221935 + ... + 222924.

It is an arithmetic number, because the mean of its divisors is an integer number (17349540).

Almost surely, 2^220205205 is an apocalyptic number.

It is an amenable number.

220205205 is a deficient number, since it is larger than the sum of its proper divisors (196183755).

220205205 is a wasteful number, since it uses less digits than its factorization.

220205205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444881 (or 444878 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 220205205 is about 14839.3128210170. The cubic root of 220205205 is about 603.8687098598.

Adding to 220205205 its reverse (502502022), we get a palindrome (722707227).

It can be divided in two parts, 22020 and 5205, that added together give a square (27225 = 165²).

The spelling of 220205205 in words is "two hundred twenty million, two hundred five thousand, two hundred five".