12222136 has 32 divisors (see below), whose sum is σ = 23775840. Its totient is φ = 5885568.

The previous prime is 12222127. The next prime is 12222151. The reversal of 12222136 is 63122221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46341 + ... + 46603.

It is an arithmetic number, because the mean of its divisors is an integer number (742995).

Almost surely, 2^12222136 is an apocalyptic number.

It is an amenable number.

12222136 is a deficient number, since it is larger than the sum of its proper divisors (11553704).

12222136 is a wasteful number, since it uses less digits than its factorization.

12222136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 459 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 12222136 is about 3496.0171624293. The cubic root of 12222136 is about 230.3468993336.

Adding to 12222136 its reverse (63122221), we get a palindrome (75344357).

The spelling of 12222136 in words is "twelve million, two hundred twenty-two thousand, one hundred thirty-six".