It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is an unprimeable number.
Almost surely, 212199120 is an apocalyptic number.
12199120 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 12199120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14641920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12199120 is a wasteful number, since it uses less digits than its factorization.
12199120 is an evil number, because the sum of its binary digits is even.
The square root of 12199120 is about 3492.7238654093. The cubic root of 12199120 is about 230.2022166135.
Subtracting from 12199120 its reverse (2199121), we obtain a palindrome (9999999).
The spelling of 12199120 in words is "twelve million, one hundred ninety-nine thousand, one hundred twenty".