3221220033 has 12 divisors (see below), whose sum is σ = 4683689088. Its totient is φ = 2133257400.

The previous prime is 3221220031. The next prime is 3221220053. The reversal of 3221220033 is 3300221223.

It is a happy number.

It is not a de Polignac number, because 3221220033 - 2¹ = 3221220031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3221219988 and 3221220015.

It is not an unprimeable number, because it can be changed into a prime (3221220031) 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 11 ways as a sum of consecutive naturals, for example, 1183785 + ... + 1186502.

It is an arithmetic number, because the mean of its divisors is an integer number (390307424).

Almost surely, 2^3221220033 is an apocalyptic number.

It is an amenable number.

3221220033 is a deficient number, since it is larger than the sum of its proper divisors (1462469055).

3221220033 is a wasteful number, since it uses less digits than its factorization.

3221220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370444 (or 2370441 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3221220033 is about 56755.7929466235. The cubic root of 3221220033 is about 1476.8627287723.

Adding to 3221220033 its reverse (3300221223), we get a palindrome (6521441256).

The spelling of 3221220033 in words is "three billion, two hundred twenty-one million, two hundred twenty thousand, thirty-three".