Adding to 12120222 its reverse (22202121), we get a palindrome (34322343).
It is a sphenic number, since it is the product of 3 distinct primes.
12120222 is an admirable number.
It is a congruent number.
Almost surely, 212120222 is an apocalyptic number.
12120222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12120222 is a wasteful number, since it uses less digits than its factorization.
12120222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2020042.
The square root of 12120222 is about 3481.4109208768. The cubic root of 12120222 is about 229.7048640397.
The spelling of 12120222 in words is "twelve million, one hundred twenty thousand, two hundred twenty-two".