2012121212201 has 2 divisors, whose sum is σ = 2012121212202. Its totient is φ = 2012121212200.

The previous prime is 2012121212081. The next prime is 2012121212203. The reversal of 2012121212201 is 1022121212102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1938109465600 + 74011746601 = 1392160^2 + 272051^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012121212201 - 2²⁶ = 2012054103337 is a prime.

Together with 2012121212203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012121212201.

It is not a weakly prime, because it can be changed into another prime (2012121212203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006060606100 + 1006060606101.

It is an arithmetic number, because the mean of its divisors is an integer number (1006060606101).

Almost surely, 2^{2012121212201} is an apocalyptic number.

It is an amenable number.

2012121212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012121212201 is an equidigital number, since it uses as much as digits as its factorization.

2012121212201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012121212201 its reverse (1022121212102), we get a palindrome (3034242424303).

Subtracting from 2012121212201 its reverse (1022121212102), we obtain a palindrome (990000000099).

The spelling of 2012121212201 in words is "two trillion, twelve billion, one hundred twenty-one million, two hundred twelve thousand, two hundred one".