12122843 has 2 divisors, whose sum is σ = 12122844. Its totient is φ = 12122842.

The previous prime is 12122833. The next prime is 12122857. The reversal of 12122843 is 34822121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12122843 - 2¹⁰ = 12121819 is a prime.

It is a super-3 number, since 3×12122843³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12122813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061421 + 6061422.

It is an arithmetic number, because the mean of its divisors is an integer number (6061422).

Almost surely, 2^12122843 is an apocalyptic number.

12122843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122843 is an equidigital number, since it uses as much as digits as its factorization.

12122843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 23.

The square root of 12122843 is about 3481.7873283703. The cubic root of 12122843 is about 229.7214207511.

Adding to 12122843 its reverse (34822121), we get a palindrome (46944964).

The spelling of 12122843 in words is "twelve million, one hundred twenty-two thousand, eight hundred forty-three".