11201020100221 has 8 divisors (see below), whose sum is σ = 12801239963840. Its totient is φ = 9600818770368.

The previous prime is 11201020100203. The next prime is 11201020100239. The reversal of 11201020100221 is 12200102010211.

It is an interprime number because it is at equal distance from previous prime (11201020100203) and next prime (11201020100239).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11201020100221 - 2¹¹ = 11201020098173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201020109221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3313311 + ... + 5777548.

It is an arithmetic number, because the mean of its divisors is an integer number (1600154995480).

Almost surely, 2^{11201020100221} is an apocalyptic number.

It is an amenable number.

11201020100221 is a deficient number, since it is larger than the sum of its proper divisors (1600219863619).

11201020100221 is an equidigital number, since it uses as much as digits as its factorization.

11201020100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266883.

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

Adding to 11201020100221 its reverse (12200102010211), we get a palindrome (23401122110432).

The spelling of 11201020100221 in words is "eleven trillion, two hundred one billion, twenty million, one hundred thousand, two hundred twenty-one".