211320222349 has 2 divisors, whose sum is σ = 211320222350. Its totient is φ = 211320222348.

The previous prime is 211320222301. The next prime is 211320222359. The reversal of 211320222349 is 943222023112.

211320222349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204682046724 + 6638175625 = 452418^2 + 81475^2 .

It is a cyclic number.

It is not a de Polignac number, because 211320222349 - 2¹⁹ = 211319698061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211320222349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211320222359) 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, 105660111174 + 105660111175.

It is an arithmetic number, because the mean of its divisors is an integer number (105660111175).

Almost surely, 2^211320222349 is an apocalyptic number.

It is an amenable number.

211320222349 is a deficient number, since it is larger than the sum of its proper divisors (1).

211320222349 is an equidigital number, since it uses as much as digits as its factorization.

211320222349 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 31.

The spelling of 211320222349 in words is "two hundred eleven billion, three hundred twenty million, two hundred twenty-two thousand, three hundred forty-nine".