Adding to 122012220 its reverse (22210221), we get a palindrome (144222441).
It is a congruent number.
It is an unprimeable number.
Almost surely, 2122012220 is an apocalyptic number.
122012220 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 122012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187407360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122012220 is a wasteful number, since it uses less digits than its factorization.
122012220 is an odious number, because the sum of its binary digits is odd.
The square root of 122012220 is about 11045.9141767443. The cubic root of 122012220 is about 495.9841251856.
The spelling of 122012220 in words is "one hundred twenty-two million, twelve thousand, two hundred twenty".