11113212 has 24 divisors (see below), whose sum is σ = 28288512. Its totient is φ = 3367600.

The previous prime is 11113183. The next prime is 11113213. The reversal of 11113212 is 21231111.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 not an unprimeable number, because it can be changed into a prime (11113213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41964 + ... + 42227.

It is an arithmetic number, because the mean of its divisors is an integer number (1178688).

Almost surely, 2^11113212 is an apocalyptic number.

11113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11113212 is an abundant number, since it is smaller than the sum of its proper divisors (17175300).

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

11113212 is a wasteful number, since it uses less digits than its factorization.

11113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84209 (or 84207 counting only the distinct ones).

The product of its digits is 12, while the sum is 12.

The square root of 11113212 is about 3333.6484517717. The cubic root of 11113212 is about 223.1583798502.

Adding to 11113212 its reverse (21231111), we get a palindrome (32344323).

It can be divided in two parts, 11113 and 212, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 11113212 in words is "eleven million, one hundred thirteen thousand, two hundred twelve".