3320131221 has 24 divisors (see below), whose sum is σ = 5406524480. Its totient is φ = 2012198760.

The previous prime is 3320131187. The next prime is 3320131253. The reversal of 3320131221 is 1221310233.

3320131221 is a `hidden beast` number, since 332 + 0 + 1 + 312 + 21 = 666.

It is not a de Polignac number, because 3320131221 - 2¹¹ = 3320129173 is a prime.

It is a super-2 number, since 2×3320131221² = 22046542649317901682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3320131194 and 3320131203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3320131291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504865 + ... + 511398.

Almost surely, 2^3320131221 is an apocalyptic number.

It is an amenable number.

3320131221 is a deficient number, since it is larger than the sum of its proper divisors (2086393259).

3320131221 is a wasteful number, since it uses less digits than its factorization.

3320131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016294 (or 1016277 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3320131221 is about 57620.5798391512. The cubic root of 3320131221 is about 1491.8268391795.

Adding to 3320131221 its reverse (1221310233), we get a palindrome (4541441454).

The spelling of 3320131221 in words is "three billion, three hundred twenty million, one hundred thirty-one thousand, two hundred twenty-one".