11201110011221 has 16 divisors (see below), whose sum is σ = 12151818567168. Its totient is φ = 10263260779200.

The previous prime is 11201110011197. The next prime is 11201110011233. The reversal of 11201110011221 is 12211001110211.

It is not a de Polignac number, because 11201110011221 - 2¹⁰ = 11201110010197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201110011196 and 11201110011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201110041221) 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, 746315 + ... + 4791576.

It is an arithmetic number, because the mean of its divisors is an integer number (759488660448).

Almost surely, 2^{11201110011221} is an apocalyptic number.

It is an amenable number.

11201110011221 is a deficient number, since it is larger than the sum of its proper divisors (950708555947).

11201110011221 is a wasteful number, since it uses less digits than its factorization.

11201110011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539052.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11201110011221 its reverse (12211001110211), we get a palindrome (23412111121432).

The spelling of 11201110011221 in words is "eleven trillion, two hundred one billion, one hundred ten million, eleven thousand, two hundred twenty-one".