212011111199113 has 2 divisors, whose sum is σ = 212011111199114. Its totient is φ = 212011111199112.

The previous prime is 212011111199099. The next prime is 212011111199159. The reversal of 212011111199113 is 311991111110212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143421773629689 + 68589337569424 = 11975883^2 + 8281868^2 .

It is a cyclic number.

It is not a de Polignac number, because 212011111199113 - 2¹⁷ = 212011111068041 is a prime.

It is a super-2 number, since 2×212011111199113² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212011111199183) 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, 106005555599556 + 106005555599557.

It is an arithmetic number, because the mean of its divisors is an integer number (106005555599557).

Almost surely, 2^{212011111199113} is an apocalyptic number.

It is an amenable number.

212011111199113 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011111199113 is an equidigital number, since it uses as much as digits as its factorization.

212011111199113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 34.

The spelling of 212011111199113 in words is "two hundred twelve trillion, eleven billion, one hundred eleven million, one hundred ninety-nine thousand, one hundred thirteen".