12521124222127 has 2 divisors, whose sum is σ = 12521124222128. Its totient is φ = 12521124222126.

The previous prime is 12521124222109. The next prime is 12521124222161. The reversal of 12521124222127 is 72122242112521.

It is an a-pointer prime, because the next prime (12521124222161) can be obtained adding 12521124222127 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12521124222127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12521124222092 and 12521124222101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12521124202127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6260562111063 + 6260562111064.

It is an arithmetic number, because the mean of its divisors is an integer number (6260562111064).

Almost surely, 2^{12521124222127} is an apocalyptic number.

12521124222127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12521124222127 is an equidigital number, since it uses as much as digits as its factorization.

12521124222127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 34.

Adding to 12521124222127 its reverse (72122242112521), we get a palindrome (84643366334648).

The spelling of 12521124222127 in words is "twelve trillion, five hundred twenty-one billion, one hundred twenty-four million, two hundred twenty-two thousand, one hundred twenty-seven".