11201021110221 has 16 divisors (see below), whose sum is σ = 15449865254400. Its totient is φ = 7209768218688.

The previous prime is 11201021110217. The next prime is 11201021110231. The reversal of 11201021110221 is 12201112010211.

It is a happy number.

It is not a de Polignac number, because 11201021110221 - 2² = 11201021110217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11201021110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201021110231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7195095 + ... + 8612283.

It is an arithmetic number, because the mean of its divisors is an integer number (965616578400).

Almost surely, 2^{11201021110221} is an apocalyptic number.

It is an amenable number.

11201021110221 is a deficient number, since it is larger than the sum of its proper divisors (4248844144179).

11201021110221 is a wasteful number, since it uses less digits than its factorization.

11201021110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508068.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11201021110221 its reverse (12201112010211), we get a palindrome (23402133120432).

The spelling of 11201021110221 in words is "eleven trillion, two hundred one billion, twenty-one million, one hundred ten thousand, two hundred twenty-one".