12312022 has 16 divisors (see below), whose sum is σ = 19152000. Its totient is φ = 5929920.

The previous prime is 12312017. The next prime is 12312023. The reversal of 12312022 is 22021321.

It is a junction number, because it is equal to n+sod(n) for n = 12311993 and 12312011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21354 + ... + 21922.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 2^12312022 is an apocalyptic number.

12312022 is a deficient number, since it is larger than the sum of its proper divisors (6839978).

12312022 is a wasteful number, since it uses less digits than its factorization.

12312022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12312022 is about 3508.8490990637. The cubic root of 12312022 is about 230.9102054123.

Adding to 12312022 its reverse (22021321), we get a palindrome (34333343).

The spelling of 12312022 in words is "twelve million, three hundred twelve thousand, twenty-two".