Adding to 12180 its reverse (8121), we get a triangular number (20301 = T201).
It is a happy number.
12180 is an undulating number in base 12.
It is a congruent number.
It is an unprimeable number.
212180 is an apocalyptic number.
12180 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 12180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12180 is a wasteful number, since it uses less digits than its factorization.
12180 is an evil number, because the sum of its binary digits is even.
The square root of 12180 is about 110.3630372906. The cubic root of 12180 is about 23.0081886407.
The spelling of 12180 in words is "twelve thousand, one hundred eighty".