11201120212221 has 12 divisors (see below), whose sum is σ = 16523638327872. Its totient is φ = 7308532336776.

The previous prime is 11201120212181. The next prime is 11201120212253. The reversal of 11201120212221 is 12221202110211.

11201120212221 is a `hidden beast` number, since 1 + 120 + 112 + 0 + 212 + 221 = 666.

It is not a de Polignac number, because 11201120212221 - 2³⁵ = 11166760473853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201120212194 and 11201120212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201120212621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13240094391 + ... + 13240095236.

It is an arithmetic number, because the mean of its divisors is an integer number (1376969860656).

Almost surely, 2^{11201120212221} is an apocalyptic number.

It is an amenable number.

11201120212221 is a deficient number, since it is larger than the sum of its proper divisors (5322518115651).

11201120212221 is a wasteful number, since it uses less digits than its factorization.

11201120212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480189680 (or 26480189677 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11201120212221 its reverse (12221202110211), we get a palindrome (23422322322432).

The spelling of 11201120212221 in words is "eleven trillion, two hundred one billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".