11222133111 has 12 divisors (see below), whose sum is σ = 18525426192. Its totient is φ = 6412647456.

The previous prime is 11222133089. The next prime is 11222133137. The reversal of 11222133111 is 11133122211.

11222133111 is a `hidden beast` number, since 112 + 221 + 331 + 1 + 1 = 666.

It is not a de Polignac number, because 11222133111 - 2⁵ = 11222133079 is a prime.

It is a super-2 number, since 2×11222133111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222134111) 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, 89064486 + ... + 89064611.

It is an arithmetic number, because the mean of its divisors is an integer number (1543785516).

Almost surely, 2^11222133111 is an apocalyptic number.

11222133111 is a deficient number, since it is larger than the sum of its proper divisors (7303293081).

11222133111 is a wasteful number, since it uses less digits than its factorization.

11222133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178129110 (or 178129107 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11222133111 its reverse (11133122211), we get a palindrome (22355255322).

The spelling of 11222133111 in words is "eleven billion, two hundred twenty-two million, one hundred thirty-three thousand, one hundred eleven".