220100205 has 16 divisors (see below), whose sum is σ = 379249920. Its totient is φ = 108356928.

The previous prime is 220100171. The next prime is 220100291. The reversal of 220100205 is 502001022.

It is not a de Polignac number, because 220100205 - 2⁶ = 220100141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564165 + ... + 564554.

It is an arithmetic number, because the mean of its divisors is an integer number (23703120).

Almost surely, 2^220100205 is an apocalyptic number.

It is an amenable number.

220100205 is a deficient number, since it is larger than the sum of its proper divisors (159149715).

220100205 is a wasteful number, since it uses less digits than its factorization.

220100205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128740.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 220100205 is about 14835.7744994995. The cubic root of 220100205 is about 603.7727141041.

Adding to 220100205 its reverse (502001022), we get a palindrome (722101227).

The spelling of 220100205 in words is "two hundred twenty million, one hundred thousand, two hundred five".