Adding to 20122122 its reverse (22122102), we get a palindrome (42244224).
It is a sphenic number, since it is the product of 3 distinct primes.
20122122 is an admirable number.
It is an unprimeable number.
Almost surely, 220122122 is an apocalyptic number.
20122122 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.
20122122 is a wasteful number, since it uses less digits than its factorization.
20122122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3353692.
The square root of 20122122 is about 4485.7688304236. The cubic root of 20122122 is about 271.9931244658.
The spelling of 20122122 in words is "twenty million, one hundred twenty-two thousand, one hundred twenty-two".