11200221211021 has 4 divisors (see below), whose sum is σ = 11201090199100. Its totient is φ = 11199352222944.

The previous prime is 11200221210911. The next prime is 11200221211027. The reversal of 11200221211021 is 12011212200211.

11200221211021 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 7672262913225 + 3527958297796 = 2769885^2 + 1878286^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200221211021 - 2¹¹ = 11200221208973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200221210986 and 11200221211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200221211027) 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, 434474706 + ... + 434500483.

It is an arithmetic number, because the mean of its divisors is an integer number (2800272549775).

Almost surely, 2^{11200221211021} is an apocalyptic number.

It is an amenable number.

11200221211021 is a deficient number, since it is larger than the sum of its proper divisors (868988079).

11200221211021 is an equidigital number, since it uses as much as digits as its factorization.

11200221211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868988078.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11200221211021 its reverse (12011212200211), we get a palindrome (23211433411232).

The spelling of 11200221211021 in words is "eleven trillion, two hundred billion, two hundred twenty-one million, two hundred eleven thousand, twenty-one".