2220100205 has 4 divisors (see below), whose sum is σ = 2664120252. Its totient is φ = 1776080160.

The previous prime is 2220100187. The next prime is 2220100229. The reversal of 2220100205 is 5020010222.

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 933730249 + 1286369956 = 30557^2 + 35866^2 .

It is not a de Polignac number, because 2220100205 - 2²⁸ = 1951664749 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 2220100205.

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, 222010016 + ... + 222010025.

It is an arithmetic number, because the mean of its divisors is an integer number (666030063).

Almost surely, 2^2220100205 is an apocalyptic number.

It is an amenable number.

2220100205 is a deficient number, since it is larger than the sum of its proper divisors (444020047).

2220100205 is an equidigital number, since it uses as much as digits as its factorization.

2220100205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444020046.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2220100205 is about 47117.9393119012. The cubic root of 2220100205 is about 1304.5403772780.

Adding to 2220100205 its reverse (5020010222), we get a palindrome (7240110427).

The spelling of 2220100205 in words is "two billion, two hundred twenty million, one hundred thousand, two hundred five".