It is a happy number.
It is an unprimeable number.
Almost surely, 220122100222120 is an apocalyptic number.
20122100222120 is a gapful number since it is divisible by the number (20) 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 20122100222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24985379301120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20122100222120 is a wasteful number, since it uses less digits than its factorization.
20122100222120 is an odious number, because the sum of its binary digits is odd.
Adding to 20122100222120 its reverse (2122200122102), we get a palindrome (22244300344222).
The spelling of 20122100222120 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, two hundred twenty-two thousand, one hundred twenty".