2213205205 has 8 divisors (see below), whose sum is σ = 2657188152. Its totient is φ = 1769669568.

The previous prime is 2213205173. The next prime is 2213205221. The reversal of 2213205205 is 5025023122.

It can be written as a sum of positive squares in 4 ways, for example, as 126360081 + 2086845124 = 11241^2 + 45682^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213205205 - 2⁵ = 2213205173 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100842 + ... + 120811.

It is an arithmetic number, because the mean of its divisors is an integer number (332148519).

Almost surely, 2^2213205205 is an apocalyptic number.

It is an amenable number.

2213205205 is a deficient number, since it is larger than the sum of its proper divisors (443982947).

2213205205 is a wasteful number, since it uses less digits than its factorization.

2213205205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223655.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2213205205 is about 47044.7149529041. The cubic root of 2213205205 is about 1303.1884662620.

Adding to 2213205205 its reverse (5025023122), we get a palindrome (7238228327).

The spelling of 2213205205 in words is "two billion, two hundred thirteen million, two hundred five thousand, two hundred five".