12162212 has 6 divisors (see below), whose sum is σ = 21283878. Its totient is φ = 6081104.

The previous prime is 12162211. The next prime is 12162247. The reversal of 12162212 is 21226121.

It can be written as a sum of positive squares in only one way, i.e., 11874916 + 287296 = 3446^2 + 536^2 .

It is not an unprimeable number, because it can be changed into a prime (12162211) 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 as a sum of consecutive naturals, namely, 1520273 + ... + 1520280.

It is an arithmetic number, because the mean of its divisors is an integer number (3547313).

Almost surely, 2^12162212 is an apocalyptic number.

It is an amenable number.

12162212 is a deficient number, since it is larger than the sum of its proper divisors (9121666).

12162212 is a wasteful number, since it uses less digits than its factorization.

12162212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040557 (or 3040555 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 12162212 is about 3487.4363076621. The cubic root of 12162212 is about 229.9698259093.

Adding to 12162212 its reverse (21226121), we get a palindrome (33388333).

The spelling of 12162212 in words is "twelve million, one hundred sixty-two thousand, two hundred twelve".