211420212349 has 2 divisors, whose sum is σ = 211420212350. Its totient is φ = 211420212348.

The previous prime is 211420212337. The next prime is 211420212481. The reversal of 211420212349 is 943212024112.

211420212349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138618459225 + 72801753124 = 372315^2 + 269818^2 .

It is a cyclic number.

It is not a de Polignac number, because 211420212349 - 2⁷ = 211420212221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211420212349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211420252349) 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, 105710106174 + 105710106175.

It is an arithmetic number, because the mean of its divisors is an integer number (105710106175).

Almost surely, 2^211420212349 is an apocalyptic number.

It is an amenable number.

211420212349 is a deficient number, since it is larger than the sum of its proper divisors (1).

211420212349 is an equidigital number, since it uses as much as digits as its factorization.

211420212349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 211420212349 in words is "two hundred eleven billion, four hundred twenty million, two hundred twelve thousand, three hundred forty-nine".