12210231 has 12 divisors (see below), whose sum is σ = 17895416. Its totient is φ = 7399920.

The previous prime is 12210229. The next prime is 12210241. The reversal of 12210231 is 13201221.

12210231 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12210231 - 2¹ = 12210229 is a prime.

It is a super-2 number, since 2×12210231² = 298179482146722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16456 + ... + 17181.

Almost surely, 2^12210231 is an apocalyptic number.

12210231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12210231 is a deficient number, since it is larger than the sum of its proper divisors (5685185).

12210231 is a wasteful number, since it uses less digits than its factorization.

12210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33662 (or 33651 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12210231 is about 3494.3140957848. The cubic root of 12210231 is about 230.2720850596.

Adding to 12210231 its reverse (13201221), we get a palindrome (25411452).

The spelling of 12210231 in words is "twelve million, two hundred ten thousand, two hundred thirty-one".