3133232221 has 16 divisors (see below), whose sum is σ = 3796441600. Its totient is φ = 2525959728.

The previous prime is 3133232213. The next prime is 3133232227. The reversal of 3133232221 is 1222323313.

3133232221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3133232221 - 2³ = 3133232213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3133232192 and 3133232201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133232227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66255 + ... + 103228.

It is an arithmetic number, because the mean of its divisors is an integer number (237277600).

Almost surely, 2^3133232221 is an apocalyptic number.

It is an amenable number.

3133232221 is a deficient number, since it is larger than the sum of its proper divisors (663209379).

3133232221 is a wasteful number, since it uses less digits than its factorization.

3133232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169648.

The product of its digits is 1296, while the sum is 22.

The square root of 3133232221 is about 55975.2822324283. The cubic root of 3133232221 is about 1463.2915386604.

Adding to 3133232221 its reverse (1222323313), we get a palindrome (4355555534).

The spelling of 3133232221 in words is "three billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred twenty-one".