3221212 has 12 divisors (see below), whose sum is σ = 5651856. Its totient is φ = 1606400.

The previous prime is 3221189. The next prime is 3221237. The reversal of 3221212 is 2121223.

3221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3221192 and 3221201.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1212 + ... + 2812.

It is an arithmetic number, because the mean of its divisors is an integer number (470988).

Almost surely, 2^3221212 is an apocalyptic number.

It is an amenable number.

3221212 is a deficient number, since it is larger than the sum of its proper divisors (2430644).

3221212 is a wasteful number, since it uses less digits than its factorization.

3221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2106 counting only the distinct ones).

The product of its digits is 48, while the sum is 13.

The square root of 3221212 is about 1794.7735233171. The cubic root of 3221212 is about 147.6861501116.

Adding to 3221212 its reverse (2121223), we get a palindrome (5342435).

The spelling of 3221212 in words is "three million, two hundred twenty-one thousand, two hundred twelve".