12020201200121 has 2 divisors, whose sum is σ = 12020201200122. Its totient is φ = 12020201200120.

The previous prime is 12020201200061. The next prime is 12020201200187. The reversal of 12020201200121 is 12100210202021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6334055730025 + 5686145470096 = 2516755^2 + 2384564^2 .

It is an emirp because it is prime and its reverse (12100210202021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12020201200121 - 2²⁶ = 12020134091257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020201200096 and 12020201200105.

It is not a weakly prime, because it can be changed into another prime (12020201200321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010100600060 + 6010100600061.

It is an arithmetic number, because the mean of its divisors is an integer number (6010100600061).

Almost surely, 2^{12020201200121} is an apocalyptic number.

It is an amenable number.

12020201200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020201200121 is an equidigital number, since it uses as much as digits as its factorization.

12020201200121 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 12020201200121 its reverse (12100210202021), we get a palindrome (24120411402142).

The spelling of 12020201200121 in words is "twelve trillion, twenty billion, two hundred one million, two hundred thousand, one hundred twenty-one".