12125822 has 4 divisors (see below), whose sum is σ = 18188736. Its totient is φ = 6062910.

The previous prime is 12125809. The next prime is 12125837. The reversal of 12125822 is 22852121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3031454 + ... + 3031457.

It is an arithmetic number, because the mean of its divisors is an integer number (4547184).

Almost surely, 2^12125822 is an apocalyptic number.

12125822 is a deficient number, since it is larger than the sum of its proper divisors (6062914).

12125822 is an equidigital number, since it uses as much as digits as its factorization.

12125822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062913.

The product of its digits is 640, while the sum is 23.

The square root of 12125822 is about 3482.2150996169. The cubic root of 12125822 is about 229.7402360314.

Adding to 12125822 its reverse (22852121), we get a palindrome (34977943).

The spelling of 12125822 in words is "twelve million, one hundred twenty-five thousand, eight hundred twenty-two".