3221116 has 6 divisors (see below), whose sum is σ = 5636960. Its totient is φ = 1610556.

The previous prime is 3221111. The next prime is 3221123. The reversal of 3221116 is 6111223.

3221116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3221116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402636 + ... + 402643.

Almost surely, 2^3221116 is an apocalyptic number.

It is an amenable number.

3221116 is a deficient number, since it is larger than the sum of its proper divisors (2415844).

3221116 is a wasteful number, since it uses less digits than its factorization.

3221116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805283 (or 805281 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 3221116 is about 1794.7467787964. The cubic root of 3221116 is about 147.6846829609.

Adding to 3221116 its reverse (6111223), we get a palindrome (9332339).

The spelling of 3221116 in words is "three million, two hundred twenty-one thousand, one hundred sixteen".