It is a nude number because it is divisible by every one of its digits.
It is an unprimeable number.
Almost surely, 212199122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12199122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14627340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12199122 is a wasteful number, since it uses less digits than its factorization.
12199122 is an odious number, because the sum of its binary digits is odd.
The square root of 12199122 is about 3492.7241517188. The cubic root of 12199122 is about 230.2022291937.
Subtracting 12199122 from its reverse (22199121), we obtain a palindrome (9999999).
The spelling of 12199122 in words is "twelve million, one hundred ninety-nine thousand, one hundred twenty-two".