12122020000121 has 2 divisors, whose sum is σ = 12122020000122. Its totient is φ = 12122020000120.

The previous prime is 12122020000117. The next prime is 12122020000147. The reversal of 12122020000121 is 12100002022121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7770373676521 + 4351646323600 = 2787539^2 + 2086060^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122020000121 - 2² = 12122020000117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122020000096 and 12122020000105.

It is not a weakly prime, because it can be changed into another prime (12122020000151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061010000060 + 6061010000061.

It is an arithmetic number, because the mean of its divisors is an integer number (6061010000061).

Almost surely, 2^{12122020000121} is an apocalyptic number.

It is an amenable number.

12122020000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122020000121 is an equidigital number, since it uses as much as digits as its factorization.

12122020000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12122020000121 its reverse (12100002022121), we get a palindrome (24222022022242).

The spelling of 12122020000121 in words is "twelve trillion, one hundred twenty-two billion, twenty million, one hundred twenty-one", and thus it is an aban number.