11201000220221 has 6 divisors (see below), whose sum is σ = 13029734950110. Its totient is φ = 9600857331576.

The previous prime is 11201000220167. The next prime is 11201000220227. The reversal of 11201000220221 is 12202200010211.

It can be written as a sum of positive squares in only one way, i.e., 6013584012121 + 5187416208100 = 2452261^2 + 2277590^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11201000220221 is a prime.

It is a super-3 number, since 3×11201000220221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201000220196 and 11201000220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201000220227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114295920566 + ... + 114295920663.

It is an arithmetic number, because the mean of its divisors is an integer number (2171622491685).

Almost surely, 2^{11201000220221} is an apocalyptic number.

It is an amenable number.

11201000220221 is a deficient number, since it is larger than the sum of its proper divisors (1828734729889).

11201000220221 is an equidigital number, since it uses as much as digits as its factorization.

11201000220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228591841243 (or 228591841236 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11201000220221 its reverse (12202200010211), we get a palindrome (23403200230432).

The spelling of 11201000220221 in words is "eleven trillion, two hundred one billion, two hundred twenty thousand, two hundred twenty-one".