2113330433221 has 16 divisors (see below), whose sum is σ = 2419645219200. Its totient is φ = 1808119116288.

The previous prime is 2113330433209. The next prime is 2113330433239. The reversal of 2113330433221 is 1223340333112.

It is a cyclic number.

It is not a de Polignac number, because 2113330433221 - 2¹⁹ = 2113329908933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113330433221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113330433281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33545970 + ... + 33608908.

It is an arithmetic number, because the mean of its divisors is an integer number (151227826200).

Almost surely, 2^{2113330433221} is an apocalyptic number.

It is an amenable number.

2113330433221 is a deficient number, since it is larger than the sum of its proper divisors (306314785979).

2113330433221 is an equidigital number, since it uses as much as digits as its factorization.

2113330433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71628.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 2113330433221 its reverse (1223340333112), we get a palindrome (3336670766333).

The spelling of 2113330433221 in words is "two trillion, one hundred thirteen billion, three hundred thirty million, four hundred thirty-three thousand, two hundred twenty-one".