2222005 has 4 divisors (see below), whose sum is σ = 2666412. Its totient is φ = 1777600.

The previous prime is 2221997. The next prime is 2222023. The reversal of 2222005 is 5002222.

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 1406596 + 815409 = 1186^2 + 903^2 .

It is not a de Polignac number, because 2222005 - 2³ = 2221997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222196 + ... + 222205.

It is an arithmetic number, because the mean of its divisors is an integer number (666603).

2^2222005 is an apocalyptic number.

It is an amenable number.

2222005 is a deficient number, since it is larger than the sum of its proper divisors (444407).

2222005 is an equidigital number, since it uses as much as digits as its factorization.

2222005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444406.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2222005 is about 1490.6391246710. The cubic root of 2222005 is about 130.4913359192.

Adding to 2222005 its reverse (5002222), we get a palindrome (7224227).

The spelling of 2222005 in words is "two million, two hundred twenty-two thousand, five".