12101212000121 has 2 divisors, whose sum is σ = 12101212000122. Its totient is φ = 12101212000120.

The previous prime is 12101212000081. The next prime is 12101212000133. The reversal of 12101212000121 is 12100021210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9883006875625 + 2218205124496 = 3143725^2 + 1489364^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101212000121 - 2²⁶ = 12101144891257 is a prime.

It is a super-3 number, since 3×12101212000121³ (a number of 40 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12101212000096 and 12101212000105.

It is not a weakly prime, because it can be changed into another prime (12101212003121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050606000060 + 6050606000061.

It is an arithmetic number, because the mean of its divisors is an integer number (6050606000061).

Almost surely, 2^{12101212000121} is an apocalyptic number.

It is an amenable number.

12101212000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101212000121 is an equidigital number, since it uses as much as digits as its factorization.

12101212000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101212000121 its reverse (12100021210121), we get a palindrome (24201233210242).

The spelling of 12101212000121 in words is "twelve trillion, one hundred one billion, two hundred twelve million, one hundred twenty-one", and thus it is an aban number.