11201000011221 has 16 divisors (see below), whose sum is σ = 15338654362304. Its totient is φ = 7265348659584.

The previous prime is 11201000011219. The next prime is 11201000011231. The reversal of 11201000011221 is 12211000010211.

It is not a de Polignac number, because 11201000011221 - 2¹ = 11201000011219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201000011197 and 11201000011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201000011231) 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, 3867390 + ... + 6112176.

It is an arithmetic number, because the mean of its divisors is an integer number (958665897644).

Almost surely, 2^{11201000011221} is an apocalyptic number.

It is an amenable number.

11201000011221 is a deficient number, since it is larger than the sum of its proper divisors (4137654351083).

11201000011221 is a wasteful number, since it uses less digits than its factorization.

11201000011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289780.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11201000011221 its reverse (12211000010211), we get a palindrome (23412000021432).

The spelling of 11201000011221 in words is "eleven trillion, two hundred one billion, eleven thousand, two hundred twenty-one".