12222236 has 12 divisors (see below), whose sum is σ = 23034312. Its totient is φ = 5641008.

The previous prime is 12222211. The next prime is 12222241. The reversal of 12222236 is 63222221.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117470 + ... + 117573.

It is an arithmetic number, because the mean of its divisors is an integer number (1919526).

Almost surely, 2^12222236 is an apocalyptic number.

It is an amenable number.

12222236 is a deficient number, since it is larger than the sum of its proper divisors (10812076).

12222236 is a wasteful number, since it uses less digits than its factorization.

12222236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235060 (or 235058 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 12222236 is about 3496.0314643893. The cubic root of 12222236 is about 230.3475275551.

Adding to 12222236 its reverse (63222221), we get a palindrome (75444457).

The spelling of 12222236 in words is "twelve million, two hundred twenty-two thousand, two hundred thirty-six".