12210331 has 8 divisors (see below), whose sum is σ = 14689280. Its totient is φ = 9915048.

The previous prime is 12210307. The next prime is 12210343. The reversal of 12210331 is 13301221.

12210331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210331 - 2⁷ = 12210203 is a prime.

It is a super-2 number, since 2×12210331² = 298184366259122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12214331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45771 + ... + 46036.

It is an arithmetic number, because the mean of its divisors is an integer number (1836160).

Almost surely, 2^12210331 is an apocalyptic number.

12210331 is a deficient number, since it is larger than the sum of its proper divisors (2478949).

12210331 is an equidigital number, since it uses as much as digits as its factorization.

12210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91833.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12210331 is about 3494.3284047153. The cubic root of 12210331 is about 230.2727136894.

Adding to 12210331 its reverse (13301221), we get a palindrome (25511552).

The spelling of 12210331 in words is "twelve million, two hundred ten thousand, three hundred thirty-one".