12011122 has 16 divisors (see below), whose sum is σ = 18412632. Its totient is φ = 5875200.

The previous prime is 12011117. The next prime is 12011123. The reversal of 12011122 is 22111021.

It can be written as a sum of positive squares in 4 ways, for example, as 9357481 + 2653641 = 3059^2 + 1629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011099 and 12011108.

It is not an unprimeable number, because it can be changed into a prime (12011123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19288 + ... + 19900.

Almost surely, 2^12011122 is an apocalyptic number.

12011122 is a deficient number, since it is larger than the sum of its proper divisors (6401510).

12011122 is a wasteful number, since it uses less digits than its factorization.

12011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12011122 is about 3465.7065657669. The cubic root of 12011122 is about 229.0135572912.

Adding to 12011122 its reverse (22111021), we get a palindrome (34122143).

The spelling of 12011122 in words is "twelve million, eleven thousand, one hundred twenty-two".