12120000099997 has 2 divisors, whose sum is σ = 12120000099998. Its totient is φ = 12120000099996.

The previous prime is 12120000099901. The next prime is 12120000100003. The reversal of 12120000099997 is 79999000002121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11495124078916 + 624876021081 = 3390446^2 + 790491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120000099997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12120000099997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120040099997) 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, 6060000049998 + 6060000049999.

It is an arithmetic number, because the mean of its divisors is an integer number (6060000049999).

Almost surely, 2^{12120000099997} is an apocalyptic number.

It is an amenable number.

12120000099997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120000099997 is an equidigital number, since it uses as much as digits as its factorization.

12120000099997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 49.

The spelling of 12120000099997 in words is "twelve trillion, one hundred twenty billion, ninety-nine thousand, nine hundred ninety-seven".