3220131220 has 24 divisors (see below), whose sum is σ = 6863207904. Its totient is φ = 1268827296.

The previous prime is 3220131217. The next prime is 3220131227. The reversal of 3220131220 is 221310223.

It is a junction number, because it is equal to n+sod(n) for n = 3220131194 and 3220131203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220131227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200202 + ... + 1202881.

It is an arithmetic number, because the mean of its divisors is an integer number (285966996).

Almost surely, 2^3220131220 is an apocalyptic number.

It is an amenable number.

3220131220 is an abundant number, since it is smaller than the sum of its proper divisors (3643076684).

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

3220131220 is a wasteful number, since it uses less digits than its factorization.

3220131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403159 (or 2403157 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3220131220 is about 56746.2000489901. The cubic root of 3220131220 is about 1476.6963106104.

Adding to 3220131220 its reverse (221310223), we get a palindrome (3441441443).

The spelling of 3220131220 in words is "three billion, two hundred twenty million, one hundred thirty-one thousand, two hundred twenty".