2111021212193 has 2 divisors, whose sum is σ = 2111021212194. Its totient is φ = 2111021212192.

The previous prime is 2111021212151. The next prime is 2111021212217. The reversal of 2111021212193 is 3912121201112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1664894734864 + 446126477329 = 1290308^2 + 667927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111021212193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2111021212493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510606096 + 1055510606097.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510606097).

Almost surely, 2^{2111021212193} is an apocalyptic number.

It is an amenable number.

2111021212193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111021212193 is an equidigital number, since it uses as much as digits as its factorization.

2111021212193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 2111021212193 in words is "two trillion, one hundred eleven billion, twenty-one million, two hundred twelve thousand, one hundred ninety-three".