Adding to 1210122 its reverse (2210121), we get a palindrome (3420243).
Subtracting 1210122 from its reverse (2210121), we obtain a palindrome (999999).
It is a congruent number.
21210122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1210122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1210122 is a wasteful number, since it uses less digits than its factorization.
1210122 is an evil number, because the sum of its binary digits is even.
The square root of 1210122 is about 1100.0554531477. The cubic root of 1210122 is about 106.5638049192.
The spelling of 1210122 in words is "one million, two hundred ten thousand, one hundred twenty-two".