It is a nude number because it is divisible by every one of its digits.
Almost surely, 211223312 is an apocalyptic number.
11223312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 11223312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14699952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11223312 is a wasteful number, since it uses less digits than its factorization.
11223312 is an evil number, because the sum of its binary digits is even.
The square root of 11223312 is about 3350.1211918377. The cubic root of 11223312 is about 223.8929122481.
Adding to 11223312 its reverse (21332211), we get a palindrome (32555523).
The spelling of 11223312 in words is "eleven million, two hundred twenty-three thousand, three hundred twelve".