12020000121071 has 2 divisors, whose sum is σ = 12020000121072. Its totient is φ = 12020000121070.

The previous prime is 12020000121047. The next prime is 12020000121149. The reversal of 12020000121071 is 17012100002021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020000121071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020000123071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010000060535 + 6010000060536.

It is an arithmetic number, because the mean of its divisors is an integer number (6010000060536).

Almost surely, 2^{12020000121071} is an apocalyptic number.

12020000121071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020000121071 is an equidigital number, since it uses as much as digits as its factorization.

12020000121071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12020000121071 its reverse (17012100002021), we get a palindrome (29032100123092).

The spelling of 12020000121071 in words is "twelve trillion, twenty billion, one hundred twenty-one thousand, seventy-one".