11201100200021 has 4 divisors (see below), whose sum is σ = 11201193352044. Its totient is φ = 11201007048000.

The previous prime is 11201100200011. The next prime is 11201100200033. The reversal of 11201100200021 is 12000200110211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163123900996 + 11037976299025 = 403886^2 + 3322345^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201100200021 - 2¹⁰ = 11201100198997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201100199975 and 11201100200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201100200011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46395410 + ... + 46636211.

It is an arithmetic number, because the mean of its divisors is an integer number (2800298338011).

Almost surely, 2^{11201100200021} is an apocalyptic number.

It is an amenable number.

11201100200021 is a deficient number, since it is larger than the sum of its proper divisors (93152023).

11201100200021 is an equidigital number, since it uses as much as digits as its factorization.

11201100200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93152022.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11201100200021 its reverse (12000200110211), we get a palindrome (23201300310232).

The spelling of 11201100200021 in words is "eleven trillion, two hundred one billion, one hundred million, two hundred thousand, twenty-one".