11201202202221 has 20 divisors (see below), whose sum is σ = 16733355038400. Its totient is φ = 7467157988136.

The previous prime is 11201202202163. The next prime is 11201202202259. The reversal of 11201202202221 is 12220220210211.

It is a happy number.

11201202202221 is a `hidden beast` number, since 1 + 1 + 201 + 20 + 220 + 2 + 221 = 666.

It is not a de Polignac number, because 11201202202221 - 2⁷ = 11201202202093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201202202194 and 11201202202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201202202291) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 901141 + ... + 4818138.

It is an arithmetic number, because the mean of its divisors is an integer number (836667751920).

Almost surely, 2^{11201202202221} is an apocalyptic number.

It is an amenable number.

11201202202221 is a deficient number, since it is larger than the sum of its proper divisors (5532152836179).

11201202202221 is an equidigital number, since it uses as much as digits as its factorization.

11201202202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5743470 (or 5743461 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11201202202221 its reverse (12220220210211), we get a palindrome (23421422412432).

The spelling of 11201202202221 in words is "eleven trillion, two hundred one billion, two hundred two million, two hundred two thousand, two hundred twenty-one".