1122012 has 30 divisors (see below), whose sum is σ = 2934008.
Its totient is φ = 373896.
The previous prime is 1122001. The next prime is 1122029. The reversal of 1122012 is 2102211.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 1121985 and 1122003.
It is a congruent number.
It is an unprimeable number.
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 9 ways as a sum of consecutive naturals, for example, 1408 + ... + 2055.
21122012 is an apocalyptic number.
1122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1122012 is an abundant number, since it is smaller than the sum of its proper divisors (1811996).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1122012 is a wasteful number, since it uses less digits than its factorization.
1122012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3479 (or 3468 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
The square root of 1122012 is about 1059.2506785459.
The cubic root of 1122012 is about 103.9120311348.
Adding to 1122012 its reverse (2102211), we get a palindrome (3224223).
The spelling of 1122012 in words is "one million, one hundred twenty-two thousand, twelve".