12105822 has 8 divisors (see below), whose sum is σ = 24211656. Its totient is φ = 4035272.

The previous prime is 12105817. The next prime is 12105827. The reversal of 12105822 is 22850121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12105817) and next prime (12105827).

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

12105822 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105827) 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, 1008813 + ... + 1008824.

It is an arithmetic number, because the mean of its divisors is an integer number (3026457).

Almost surely, 2^12105822 is an apocalyptic number.

12105822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12105822 is a wasteful number, since it uses less digits than its factorization.

12105822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017642.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12105822 is about 3479.3421792057. The cubic root of 12105822 is about 229.6138574315.

Adding to 12105822 its reverse (22850121), we get a palindrome (34955943).

The spelling of 12105822 in words is "twelve million, one hundred five thousand, eight hundred twenty-two".