12313222 has 8 divisors (see below), whose sum is σ = 18899496. Its totient is φ = 6013392.

The previous prime is 12313187. The next prime is 12313229. The reversal of 12313222 is 22231321.

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

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12313196 and 12313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71503 + ... + 71674.

It is an arithmetic number, because the mean of its divisors is an integer number (2362437).

Almost surely, 2^12313222 is an apocalyptic number.

12313222 is a deficient number, since it is larger than the sum of its proper divisors (6586274).

12313222 is a wasteful number, since it uses less digits than its factorization.

12313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143222.

The product of its digits is 144, while the sum is 16.

The square root of 12313222 is about 3509.0200911366. The cubic root of 12313222 is about 230.9177071112.

Adding to 12313222 its reverse (22231321), we get a palindrome (34544543).

It can be divided in two parts, 123 and 13222, that multiplied together give a triangular number (1626306 = T₁₈₀₃).

The spelling of 12313222 in words is "twelve million, three hundred thirteen thousand, two hundred twenty-two".