11121303200021 has 12 divisors (see below), whose sum is σ = 12937122719820. Its totient is φ = 9532474459200.

The previous prime is 11121303199927. The next prime is 11121303200057. The reversal of 11121303200021 is 12000230312111.

It can be written as a sum of positive squares in 2 ways, for example, as 9585748519396 + 1535554680625 = 3096086^2 + 1239175^2 .

It is not a de Polignac number, because 11121303200021 - 2¹⁰ = 11121303198997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121303200621) 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 11 ways as a sum of consecutive naturals, for example, 6414785 + ... + 7961913.

It is an arithmetic number, because the mean of its divisors is an integer number (1078093559985).

Almost surely, 2^{11121303200021} is an apocalyptic number.

It is an amenable number.

11121303200021 is a deficient number, since it is larger than the sum of its proper divisors (1815819519799).

11121303200021 is a wasteful number, since it uses less digits than its factorization.

11121303200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693844 (or 1693837 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11121303200021 its reverse (12000230312111), we get a palindrome (23121533512132).

The spelling of 11121303200021 in words is "eleven trillion, one hundred twenty-one billion, three hundred three million, two hundred thousand, twenty-one".