12021112193929 has 2 divisors, whose sum is σ = 12021112193930. Its totient is φ = 12021112193928.

The previous prime is 12021112193899. The next prime is 12021112193939. The reversal of 12021112193929 is 92939121112021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8465492840704 + 3555619353225 = 2909552^2 + 1885635^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021112193929 - 2¹⁵ = 12021112161161 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021112193939) 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, 6010556096964 + 6010556096965.

It is an arithmetic number, because the mean of its divisors is an integer number (6010556096965).

Almost surely, 2^{12021112193929} is an apocalyptic number.

It is an amenable number.

12021112193929 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021112193929 is an equidigital number, since it uses as much as digits as its factorization.

12021112193929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 43.

The spelling of 12021112193929 in words is "twelve trillion, twenty-one billion, one hundred twelve million, one hundred ninety-three thousand, nine hundred twenty-nine".