211202213003809 has 2 divisors, whose sum is σ = 211202213003810. Its totient is φ = 211202213003808.

The previous prime is 211202213003729. The next prime is 211202213003813. The reversal of 211202213003809 is 908300312202112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210019426250209 + 1182786753600 = 14492047^2 + 1087560^2 .

It is a cyclic number.

It is not a de Polignac number, because 211202213003809 - 2²⁷ = 211202078786081 is a prime.

It is not a weakly prime, because it can be changed into another prime (211202213003819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601106501904 + 105601106501905.

It is an arithmetic number, because the mean of its divisors is an integer number (105601106501905).

Almost surely, 2^{211202213003809} is an apocalyptic number.

It is an amenable number.

211202213003809 is a deficient number, since it is larger than the sum of its proper divisors (1).

211202213003809 is an equidigital number, since it uses as much as digits as its factorization.

211202213003809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 211202213003809 in words is "two hundred eleven trillion, two hundred two billion, two hundred thirteen million, three thousand, eight hundred nine".