12222135 has 12 divisors (see below), whose sum is σ = 21185112. Its totient is φ = 6518448.

The previous prime is 12222127. The next prime is 12222151. The reversal of 12222135 is 53122221.

It is not a de Polignac number, because 12222135 - 2³ = 12222127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135757 + ... + 135846.

It is an arithmetic number, because the mean of its divisors is an integer number (1765426).

Almost surely, 2^12222135 is an apocalyptic number.

12222135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12222135 is a deficient number, since it is larger than the sum of its proper divisors (8962977).

12222135 is a wasteful number, since it uses less digits than its factorization.

12222135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271614 (or 271611 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12222135 is about 3496.0170194094. The cubic root of 12222135 is about 230.3468930514.

Adding to 12222135 its reverse (53122221), we get a palindrome (65344356).

The spelling of 12222135 in words is "twelve million, two hundred twenty-two thousand, one hundred thirty-five".