12212313 has 16 divisors (see below), whose sum is σ = 16796160. Its totient is φ = 7889024.

The previous prime is 12212311. The next prime is 12212327. The reversal of 12212313 is 31321221.

12212313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12212313 - 2¹ = 12212311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212292 and 12212301.

It is not an unprimeable number, because it can be changed into a prime (12212311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13720 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^12212313 is an apocalyptic number.

It is an amenable number.

12212313 is a deficient number, since it is larger than the sum of its proper divisors (4583847).

12212313 is an equidigital number, since it uses as much as digits as its factorization.

12212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008.

The product of its digits is 72, while the sum is 15.

The square root of 12212313 is about 3494.6119956298. The cubic root of 12212313 is about 230.2851724242.

Adding to 12212313 its reverse (31321221), we get a palindrome (43533534).

The spelling of 12212313 in words is "twelve million, two hundred twelve thousand, three hundred thirteen".