3221222205 has 16 divisors (see below), whose sum is σ = 5154899904. Its totient is φ = 1717670400.

The previous prime is 3221222177. The next prime is 3221222219. The reversal of 3221222205 is 5022221223.

It is not a de Polignac number, because 3221222205 - 2²⁷ = 3087004477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81805 + ... + 114605.

It is an arithmetic number, because the mean of its divisors is an integer number (322181244).

Almost surely, 2^3221222205 is an apocalyptic number.

It is an amenable number.

3221222205 is a deficient number, since it is larger than the sum of its proper divisors (1933677699).

3221222205 is a wasteful number, since it uses less digits than its factorization.

3221222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39356.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3221222205 is about 56755.8120812309. The cubic root of 3221222205 is about 1476.8630607112.

Adding to 3221222205 its reverse (5022221223), we get a palindrome (8243443428).

The spelling of 3221222205 in words is "three billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred five".