12012122012213 has 2 divisors, whose sum is σ = 12012122012214. Its totient is φ = 12012122012212.

The previous prime is 12012122012153. The next prime is 12012122012221. The reversal of 12012122012213 is 31221022121021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6883156274929 + 5128965737284 = 2623577^2 + 2264722^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012122012213 - 2⁸ = 12012122011957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012122012243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006061006106 + 6006061006107.

It is an arithmetic number, because the mean of its divisors is an integer number (6006061006107).

Almost surely, 2^{12012122012213} is an apocalyptic number.

It is an amenable number.

12012122012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012122012213 is an equidigital number, since it uses as much as digits as its factorization.

12012122012213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12012122012213 its reverse (31221022121021), we get a palindrome (43233144133234).

The spelling of 12012122012213 in words is "twelve trillion, twelve billion, one hundred twenty-two million, twelve thousand, two hundred thirteen".