3330031221 has 12 divisors (see below), whose sum is σ = 5247322080. Its totient is φ = 2018200680.

The previous prime is 3330031153. The next prime is 3330031223. The reversal of 3330031221 is 1221300333.

3330031221 is a `hidden beast` number, since 3 + 330 + 0 + 312 + 21 = 666.

It is not a de Polignac number, because 3330031221 - 2⁷ = 3330031093 is a prime.

It is a super-2 number, since 2×3330031221² = 22178215865669501682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3330031194 and 3330031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3330031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16818241 + ... + 16818438.

It is an arithmetic number, because the mean of its divisors is an integer number (437276840).

Almost surely, 2^3330031221 is an apocalyptic number.

It is an amenable number.

3330031221 is a deficient number, since it is larger than the sum of its proper divisors (1917290859).

3330031221 is a wasteful number, since it uses less digits than its factorization.

3330031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33636696 (or 33636693 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3330031221 is about 57706.4227014637. The cubic root of 3330031221 is about 1493.3081491499.

Adding to 3330031221 its reverse (1221300333), we get a palindrome (4551331554).

It can be divided in two parts, 33300312 and 21, that added together give a palindrome (33300333).

The spelling of 3330031221 in words is "three billion, three hundred thirty million, thirty-one thousand, two hundred twenty-one".