3221212112 has 40 divisors (see below), whose sum is σ = 6337094400. Its totient is φ = 1586010240.

The previous prime is 3221212103. The next prime is 3221212117. The reversal of 3221212112 is 2112121223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221212117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292889 + ... + 303687.

It is an arithmetic number, because the mean of its divisors is an integer number (158427360).

Almost surely, 2^3221212112 is an apocalyptic number.

It is an amenable number.

3221212112 is a deficient number, since it is larger than the sum of its proper divisors (3115882288).

3221212112 is a wasteful number, since it uses less digits than its factorization.

3221212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091 (or 11085 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 3221212112 is about 56755.7231651575. The cubic root of 3221212112 is about 1476.8615182331.

Adding to 3221212112 its reverse (2112121223), we get a palindrome (5333333335).

The spelling of 3221212112 in words is "three billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twelve".