3201220032 has 56 divisors (see below), whose sum is σ = 8497287552. Its totient is φ = 1063622400.

The previous prime is 3201220031. The next prime is 3201220051. The reversal of 3201220032 is 2300221023.

It is a junction number, because it is equal to n+sod(n) for n = 3201219993 and 3201220020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201220031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32907 + ... + 86517.

Almost surely, 2^3201220032 is an apocalyptic number.

3201220032 is a gapful number since it is divisible by the number (32) 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 3201220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4248643776).

3201220032 is an abundant number, since it is smaller than the sum of its proper divisors (5296067520).

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

3201220032 is a wasteful number, since it uses less digits than its factorization.

3201220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53937 (or 53927 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3201220032 is about 56579.3251285308. The cubic root of 3201220032 is about 1473.7998521741.

Adding to 3201220032 its reverse (2300221023), we get a palindrome (5501441055).

Subtracting from 3201220032 its reverse (2300221023), we obtain a palindrome (900999009).

The spelling of 3201220032 in words is "three billion, two hundred one million, two hundred twenty thousand, thirty-two".