3201012220 has 36 divisors (see below), whose sum is σ = 7819617960. Its totient is φ = 1097489568.

The previous prime is 3201012211. The next prime is 3201012223. The reversal of 3201012220 is 222101023.

It is a self number, because there is not a number n which added to its sum of digits gives 3201012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201012223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1632190 + ... + 1634149.

It is an arithmetic number, because the mean of its divisors is an integer number (217211610).

Almost surely, 2^3201012220 is an apocalyptic number.

It is an amenable number.

3201012220 is an abundant number, since it is smaller than the sum of its proper divisors (4618605740).

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

3201012220 is a wasteful number, since it uses less digits than its factorization.

3201012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266362 (or 3266353 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3201012220 is about 56577.4886328476. The cubic root of 3201012220 is about 1473.7679601746.

Adding to 3201012220 its reverse (222101023), we get a palindrome (3423113243).

The spelling of 3201012220 in words is "three billion, two hundred one million, twelve thousand, two hundred twenty".