11011200211021 has 4 divisors (see below), whose sum is σ = 11029163017852. Its totient is φ = 10993237404192.

The previous prime is 11011200210977. The next prime is 11011200211031. The reversal of 11011200211021 is 12011200211011.

It is a happy number.

11011200211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 701257182921 + 10309943028100 = 837411^2 + 3210910^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011200211021 - 2¹⁹ = 11011199686733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011200210992 and 11011200211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011200211031) 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, 8981402496 + ... + 8981403721.

It is an arithmetic number, because the mean of its divisors is an integer number (2757290754463).

Almost surely, 2^{11011200211021} is an apocalyptic number.

It is an amenable number.

11011200211021 is a deficient number, since it is larger than the sum of its proper divisors (17962806831).

11011200211021 is an equidigital number, since it uses as much as digits as its factorization.

11011200211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17962806830.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11011200211021 its reverse (12011200211011), we get a palindrome (23022400422032).

The spelling of 11011200211021 in words is "eleven trillion, eleven billion, two hundred million, two hundred eleven thousand, twenty-one".