Adding to 1111120 its reverse (211111), we get a palindrome (1322231).
Subtracting from 1111120 its reverse (211111), we obtain a palindrome (900009).
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is an unprimeable number.
21111120 is an apocalyptic number.
1111120 is a gapful number since it is divisible by the number (10) 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 1111120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1111120 is a wasteful number, since it uses less digits than its factorization.
1111120 is an evil number, because the sum of its binary digits is even.
The square root of 1111120 is about 1054.0967697512. The cubic root of 1111120 is about 103.5746930628.
The spelling of 1111120 in words is "one million, one hundred eleven thousand, one hundred twenty".