12122858 has 8 divisors (see below), whose sum is σ = 19837440. Its totient is φ = 5510380.

The previous prime is 12122857. The next prime is 12122867. The reversal of 12122858 is 85822121.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12122858.

It is not an unprimeable number, because it can be changed into a prime (12122857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275498 + ... + 275541.

It is an arithmetic number, because the mean of its divisors is an integer number (2479680).

Almost surely, 2^12122858 is an apocalyptic number.

12122858 is a deficient number, since it is larger than the sum of its proper divisors (7714582).

12122858 is a wasteful number, since it uses less digits than its factorization.

12122858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551052.

The product of its digits is 2560, while the sum is 29.

The square root of 12122858 is about 3481.7894824357. The cubic root of 12122858 is about 229.7215154984.

Adding to 12122858 its reverse (85822121), we get a palindrome (97944979).

The spelling of 12122858 in words is "twelve million, one hundred twenty-two thousand, eight hundred fifty-eight".