11122011200221 has 4 divisors (see below), whose sum is σ = 11122771278492. Its totient is φ = 11121251121952.

The previous prime is 11122011200191. The next prime is 11122011200227. The reversal of 11122011200221 is 12200211022111.

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 2418413765625 + 8703597434596 = 1555125^2 + 2950186^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122011200221 - 2¹⁵ = 11122011167453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122011200195 and 11122011200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122011200227) 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, 380017186 + ... + 380046451.

It is an arithmetic number, because the mean of its divisors is an integer number (2780692819623).

Almost surely, 2^{11122011200221} is an apocalyptic number.

It is an amenable number.

11122011200221 is a deficient number, since it is larger than the sum of its proper divisors (760078271).

11122011200221 is an equidigital number, since it uses as much as digits as its factorization.

11122011200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760078270.

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

Adding to 11122011200221 its reverse (12200211022111), we get a palindrome (23322222222332).

The spelling of 11122011200221 in words is "eleven trillion, one hundred twenty-two billion, eleven million, two hundred thousand, two hundred twenty-one".