3201021222 has 96 divisors (see below), whose sum is σ = 7954374912. Its totient is φ = 840623616.

The previous prime is 3201021163. The next prime is 3201021227. The reversal of 3201021222 is 2221201023.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201021227) 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 47 ways as a sum of consecutive naturals, for example, 518868 + ... + 525000.

It is an arithmetic number, because the mean of its divisors is an integer number (82858072).

Almost surely, 2^3201021222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3201021222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3977187456).

3201021222 is an abundant number, since it is smaller than the sum of its proper divisors (4753353690).

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

3201021222 is a wasteful number, since it uses less digits than its factorization.

3201021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222 (or 6205 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3201021222 is about 56577.5681874009. The cubic root of 3201021222 is about 1473.7693417008.

Adding to 3201021222 its reverse (2221201023), we get a palindrome (5422222245).

The spelling of 3201021222 in words is "three billion, two hundred one million, twenty-one thousand, two hundred twenty-two".