111211133112 has 48 divisors (see below), whose sum is σ = 312352262040. Its totient is φ = 37070377056.

The previous prime is 111211133093. The next prime is 111211133129. The reversal of 111211133112 is 211331112111.

111211133112 is a `hidden beast` number, since 111 + 211 + 1 + 331 + 12 = 666.

It is a super-2 number, since 2×111211133112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28601743 + ... + 28605630.

Almost surely, 2^111211133112 is an apocalyptic number.

111211133112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111211133112 is an abundant number, since it is smaller than the sum of its proper divisors (201141128928).

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

111211133112 is an equidigital number, since it uses as much as digits as its factorization.

111211133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57207394 (or 57207378 counting only the distinct ones).

The product of its digits is 36, while the sum is 18.

Adding to 111211133112 its reverse (211331112111), we get a palindrome (322542245223).

The spelling of 111211133112 in words is "one hundred eleven billion, two hundred eleven million, one hundred thirty-three thousand, one hundred twelve".