3220202244252 has 144 divisors (see below), whose sum is σ = 8757476704032. Its totient is φ = 918278000640.

The previous prime is 3220202244197. The next prime is 3220202244253. The reversal of 3220202244252 is 2524422020223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220202244253) 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, 848983668 + ... + 848987460.

Almost surely, 2^{3220202244252} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220202244252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4378738352016).

3220202244252 is an abundant number, since it is smaller than the sum of its proper divisors (5537274459780).

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

3220202244252 is a wasteful number, since it uses less digits than its factorization.

3220202244252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228 (or 6219 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 3220202244252 its reverse (2524422020223), we get a palindrome (5744624264475).

The spelling of 3220202244252 in words is "three trillion, two hundred twenty billion, two hundred two million, two hundred forty-four thousand, two hundred fifty-two".