3313221331 has 4 divisors (see below), whose sum is σ = 3786538672. Its totient is φ = 2839903992.

The previous prime is 3313221299. The next prime is 3313221347. The reversal of 3313221331 is 1331223133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331223133 = 1637 ⋅813209.

It is a cyclic number.

It is not a de Polignac number, because 3313221331 - 2⁵ = 3313221299 is a prime.

It is a super-2 number, since 2×3313221331² = 21954871176386823122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3313221391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236658660 + ... + 236658673.

It is an arithmetic number, because the mean of its divisors is an integer number (946634668).

Almost surely, 2^3313221331 is an apocalyptic number.

3313221331 is a deficient number, since it is larger than the sum of its proper divisors (473317341).

3313221331 is an equidigital number, since it uses as much as digits as its factorization.

3313221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473317340.

The product of its digits is 972, while the sum is 22.

The square root of 3313221331 is about 57560.5883482787. The cubic root of 3313221331 is about 1490.7911854420.

Adding to 3313221331 its reverse (1331223133), we get a palindrome (4644444464).

The spelling of 3313221331 in words is "three billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred thirty-one".