11122111112 has 32 divisors (see below), whose sum is σ = 24069078720. Its totient is φ = 4719422400.

The previous prime is 11122111103. The next prime is 11122111139. The reversal of 11122111112 is 21111122111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977558 + ... + 988869.

It is an arithmetic number, because the mean of its divisors is an integer number (752158710).

Almost surely, 2^11122111112 is an apocalyptic number.

It is an amenable number.

11122111112 is an abundant number, since it is smaller than the sum of its proper divisors (12946967608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11122111112 is a wasteful number, since it uses less digits than its factorization.

11122111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966541 (or 1966537 counting only the distinct ones).

The product of its digits is 8, while the sum is 14.

Adding to 11122111112 its reverse (21111122111), we get a palindrome (32233233223).

The spelling of 11122111112 in words is "eleven billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twelve".