1000122 has 32 divisors (see below), whose sum is σ = 2181120.
Its totient is φ = 304560.
The previous prime is 1000121. The next prime is 1000133. The reversal of 1000122 is 2210001.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (6).
It is a self number, because there is not a number n which added to its sum of digits gives 1000122.
It is not an unprimeable number, because it can be changed into a prime (1000121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3393 + ... + 3675.
It is an arithmetic number, because the mean of its divisors is an integer number (68160).
21000122 is an apocalyptic number.
1000122 is an abundant number, since it is smaller than the sum of its proper divisors (1180998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1000122 is a wasteful number, since it uses less digits than its factorization.
1000122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 338.
The product of its (nonzero) digits is 4, while the sum is 6.
The square root of 1000122 is about 1000.0609981396.
The cubic root of 1000122 is about 100.0040665013.
Adding to 1000122 its reverse (2210001), we get a palindrome (3210123).
It can be divided in two parts, 10001 and 22, that multiplied together give a palindrome (220022).
The spelling of 1000122 in words is "one million, one hundred twenty-two", and thus it is an aban number.