3221421212 has 6 divisors (see below), whose sum is σ = 5637487128. Its totient is φ = 1610710604.

The previous prime is 3221421199. The next prime is 3221421221. The reversal of 3221421212 is 2121241223.

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 as a sum of consecutive naturals, namely, 402677648 + ... + 402677655.

It is an arithmetic number, because the mean of its divisors is an integer number (939581188).

Almost surely, 2^3221421212 is an apocalyptic number.

It is an amenable number.

3221421212 is a deficient number, since it is larger than the sum of its proper divisors (2416065916).

3221421212 is a wasteful number, since it uses less digits than its factorization.

3221421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805355307 (or 805355305 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 3221421212 is about 56757.5652402391. The cubic root of 3221421212 is about 1476.8934736017.

Adding to 3221421212 its reverse (2121241223), we get a palindrome (5342662435).

The spelling of 3221421212 in words is "three billion, two hundred twenty-one million, four hundred twenty-one thousand, two hundred twelve".