21113330201 has 16 divisors (see below), whose sum is σ = 22064011200. Its totient is φ = 20177817408.

The previous prime is 21113330191. The next prime is 21113330207. The reversal of 21113330201 is 10203331112.

It is a cyclic number.

It is not a de Polignac number, because 21113330201 - 2¹⁰ = 21113329177 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 21113330201.

It is not an unprimeable number, because it can be changed into a prime (21113330207) 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 15 ways as a sum of consecutive naturals, for example, 5251370 + ... + 5255388.

It is an arithmetic number, because the mean of its divisors is an integer number (1379000700).

Almost surely, 2^21113330201 is an apocalyptic number.

It is an amenable number.

21113330201 is a deficient number, since it is larger than the sum of its proper divisors (950680999).

21113330201 is a wasteful number, since it uses less digits than its factorization.

21113330201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21113330201 its reverse (10203331112), we get a palindrome (31316661313).

The spelling of 21113330201 in words is "twenty-one billion, one hundred thirteen million, three hundred thirty thousand, two hundred one".