12212129929 has 2 divisors, whose sum is σ = 12212129930. Its totient is φ = 12212129928.

The previous prime is 12212129921. The next prime is 12212129981. The reversal of 12212129929 is 92992121221.

12212129929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6343803904 + 5868326025 = 79648^2 + 76605^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212129929 - 2³ = 12212129921 is a prime.

It is a super-2 number, since 2×12212129929² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12212129891 and 12212129900.

It is not a weakly prime, because it can be changed into another prime (12212129921) 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, 6106064964 + 6106064965.

It is an arithmetic number, because the mean of its divisors is an integer number (6106064965).

Almost surely, 2^12212129929 is an apocalyptic number.

It is an amenable number.

12212129929 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212129929 is an equidigital number, since it uses as much as digits as its factorization.

12212129929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 40.

The spelling of 12212129929 in words is "twelve billion, two hundred twelve million, one hundred twenty-nine thousand, nine hundred twenty-nine".