20012012120213 has 2 divisors, whose sum is σ = 20012012120214. Its totient is φ = 20012012120212.

The previous prime is 20012012120189. The next prime is 20012012120239. The reversal of 20012012120213 is 31202121021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19130108944804 + 881903175409 = 4373798^2 + 939097^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012012120213 - 2³⁴ = 19994832251029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012012120191 and 20012012120200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012012120273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006006060106 + 10006006060107.

It is an arithmetic number, because the mean of its divisors is an integer number (10006006060107).

Almost surely, 2^{20012012120213} is an apocalyptic number.

It is an amenable number.

20012012120213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012012120213 is an equidigital number, since it uses as much as digits as its factorization.

20012012120213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20012012120213 its reverse (31202121021002), we get a palindrome (51214133141215).

The spelling of 20012012120213 in words is "twenty trillion, twelve billion, twelve million, one hundred twenty thousand, two hundred thirteen".