211121020000199 has 2 divisors, whose sum is σ = 211121020000200. Its totient is φ = 211121020000198.

The previous prime is 211121020000181. The next prime is 211121020000243. The reversal of 211121020000199 is 991000020121112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211121020000199 - 2²⁸ = 211120751564743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211121020000139) 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, 105560510000099 + 105560510000100.

It is an arithmetic number, because the mean of its divisors is an integer number (105560510000100).

Almost surely, 2^{211121020000199} is an apocalyptic number.

211121020000199 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121020000199 is an equidigital number, since it uses as much as digits as its factorization.

211121020000199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 211121020000199 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, one hundred ninety-nine", and thus it is an aban number.