3221040412 has 6 divisors (see below), whose sum is σ = 5636820728. Its totient is φ = 1610520204.

The previous prime is 3221040397. The next prime is 3221040413. The reversal of 3221040412 is 2140401223.

It is a self number, because there is not a number n which added to its sum of digits gives 3221040412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221040413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402630048 + ... + 402630055.

Almost surely, 2^3221040412 is an apocalyptic number.

It is an amenable number.

3221040412 is a deficient number, since it is larger than the sum of its proper divisors (2415780316).

3221040412 is a wasteful number, since it uses less digits than its factorization.

3221040412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805260107 (or 805260105 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3221040412 is about 56754.2105222159. The cubic root of 3221040412 is about 1476.8352774248.

Adding to 3221040412 its reverse (2140401223), we get a palindrome (5361441635).

The spelling of 3221040412 in words is "three billion, two hundred twenty-one million, forty thousand, four hundred twelve".