11202110221 has 2 divisors, whose sum is σ = 11202110222. Its totient is φ = 11202110220.

The previous prime is 11202110209. The next prime is 11202110251. The reversal of 11202110221 is 12201120211.

11202110221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10299408196 + 902702025 = 101486^2 + 30045^2 .

It is a cyclic number.

It is not a de Polignac number, because 11202110221 - 2¹¹ = 11202108173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11202110251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601055110 + 5601055111.

It is an arithmetic number, because the mean of its divisors is an integer number (5601055111).

Almost surely, 2^11202110221 is an apocalyptic number.

It is an amenable number.

11202110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202110221 is an equidigital number, since it uses as much as digits as its factorization.

11202110221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11202110221 its reverse (12201120211), we get a palindrome (23403230432).

The spelling of 11202110221 in words is "eleven billion, two hundred two million, one hundred ten thousand, two hundred twenty-one".