Adding to 2001120 its reverse (211002), we get a palindrome (2212122).
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a congruent number.
22001120 is an apocalyptic number.
2001120 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 2001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3447360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2001120 is a wasteful number, since it uses less digits than its factorization.
2001120 is an odious number, because the sum of its binary digits is odd.
The square root of 2001120 is about 1414.6094867489. The cubic root of 2001120 is about 126.0156191270.
The spelling of 2001120 in words is "two million, one thousand, one hundred twenty".