11201000100221 has 2 divisors, whose sum is σ = 11201000100222. Its totient is φ = 11201000100220.

The previous prime is 11201000100209. The next prime is 11201000100281. The reversal of 11201000100221 is 12200100010211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9304909656025 + 1896090444196 = 3050395^2 + 1376986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201000100221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11201000100281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600500050110 + 5600500050111.

It is an arithmetic number, because the mean of its divisors is an integer number (5600500050111).

Almost surely, 2^{11201000100221} is an apocalyptic number.

It is an amenable number.

11201000100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201000100221 is an equidigital number, since it uses as much as digits as its factorization.

11201000100221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11201000100221 its reverse (12200100010211), we get a palindrome (23401100110432).

The spelling of 11201000100221 in words is "eleven trillion, two hundred one billion, one hundred thousand, two hundred twenty-one".