11222120110221 has 24 divisors (see below), whose sum is σ = 16738871108960. Its totient is φ = 7240386406176.

The previous prime is 11222120110109. The next prime is 11222120110237. The reversal of 11222120110221 is 12201102122211.

11222120110221 is a `hidden beast` number, since 1 + 12 + 221 + 201 + 10 + 221 = 666.

It is not a de Polignac number, because 11222120110221 - 2²⁹ = 11221583239309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222120110194 and 11222120110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222120110291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132974911 + ... + 133059276.

Almost surely, 2^{11222120110221} is an apocalyptic number.

It is an amenable number.

11222120110221 is a deficient number, since it is larger than the sum of its proper divisors (5516750998739).

11222120110221 is a wasteful number, since it uses less digits than its factorization.

11222120110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266034345 (or 266034342 counting only the distinct ones).

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

Adding to 11222120110221 its reverse (12201102122211), we get a palindrome (23423222232432).

The spelling of 11222120110221 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty million, one hundred ten thousand, two hundred twenty-one".