12122205727 has 2 divisors, whose sum is σ = 12122205728. Its totient is φ = 12122205726.

The previous prime is 12122205709. The next prime is 12122205743. The reversal of 12122205727 is 72750222121.

12122205727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122205727 - 2¹¹ = 12122203679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122205757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061102863 + 6061102864.

It is an arithmetic number, because the mean of its divisors is an integer number (6061102864).

Almost surely, 2^12122205727 is an apocalyptic number.

12122205727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122205727 is an equidigital number, since it uses as much as digits as its factorization.

12122205727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

Adding to 12122205727 its reverse (72750222121), we get a palindrome (84872427848).

The spelling of 12122205727 in words is "twelve billion, one hundred twenty-two million, two hundred five thousand, seven hundred twenty-seven".