3133232220 has 72 divisors (see below), whose sum is σ = 8906711184. Its totient is φ = 822987264.

The previous prime is 3133232213. The next prime is 3133232227. The reversal of 3133232220 is 222323313.

It is an interprime number because it is at equal distance from previous prime (3133232213) and next prime (3133232227).

It is a super-2 number, since 2×3133232220² = 19634288288892256800, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 263524 + ... + 275156.

It is an arithmetic number, because the mean of its divisors is an integer number (123704322).

Almost surely, 2^3133232220 is an apocalyptic number.

3133232220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3133232220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4453355592).

3133232220 is an abundant number, since it is smaller than the sum of its proper divisors (5773478964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3133232220 is a wasteful number, since it uses less digits than its factorization.

3133232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11779 (or 11710 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3133232220 is about 55975.2822234958. The cubic root of 3133232220 is about 1463.2915385047.

Adding to 3133232220 its reverse (222323313), we get a palindrome (3355555533).

The spelling of 3133232220 in words is "three billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred twenty".