12422421929 has 2 divisors, whose sum is σ = 12422421930. Its totient is φ = 12422421928.

The previous prime is 12422421853. The next prime is 12422422009. The reversal of 12422421929 is 92912422421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11228581225 + 1193840704 = 105965^2 + 34552^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422421929 - 2²⁸ = 12153986473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12422421892 and 12422421901.

It is not a weakly prime, because it can be changed into another prime (12422421229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211210964 + 6211210965.

It is an arithmetic number, because the mean of its divisors is an integer number (6211210965).

Almost surely, 2^12422421929 is an apocalyptic number.

It is an amenable number.

12422421929 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422421929 is an equidigital number, since it uses as much as digits as its factorization.

12422421929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The spelling of 12422421929 in words is "twelve billion, four hundred twenty-two million, four hundred twenty-one thousand, nine hundred twenty-nine".