1212216202013 has 2 divisors, whose sum is σ = 1212216202014. Its totient is φ = 1212216202012.

The previous prime is 1212216201949. The next prime is 1212216202031. The reversal of 1212216202013 is 3102026122121.

Together with next prime (1212216202031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144294460089 + 67921741924 = 1069717^2 + 260618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212216202013 - 2⁶ = 1212216201949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212216202013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212216202033) 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, 606108101006 + 606108101007.

It is an arithmetic number, because the mean of its divisors is an integer number (606108101007).

Almost surely, 2^{1212216202013} is an apocalyptic number.

It is an amenable number.

1212216202013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212216202013 is an equidigital number, since it uses as much as digits as its factorization.

1212216202013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 1212216202013 in words is "one trillion, two hundred twelve billion, two hundred sixteen million, two hundred two thousand, thirteen".