12001210209929 has 2 divisors, whose sum is σ = 12001210209930. Its totient is φ = 12001210209928.

The previous prime is 12001210209899. The next prime is 12001210210007. The reversal of 12001210209929 is 92990201210021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6469061599225 + 5532148610704 = 2543435^2 + 2352052^2 .

It is an emirp because it is prime and its reverse (92990201210021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001210209929 - 2¹² = 12001210205833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001210209892 and 12001210209901.

It is not a weakly prime, because it can be changed into another prime (12001210200929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000605104964 + 6000605104965.

It is an arithmetic number, because the mean of its divisors is an integer number (6000605104965).

Almost surely, 2^{12001210209929} is an apocalyptic number.

It is an amenable number.

12001210209929 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001210209929 is an equidigital number, since it uses as much as digits as its factorization.

12001210209929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 12001210209929 in words is "twelve trillion, one billion, two hundred ten million, two hundred nine thousand, nine hundred twenty-nine".