211975994273 has 2 divisors, whose sum is σ = 211975994274. Its totient is φ = 211975994272.

The previous prime is 211975994249. The next prime is 211975994353. The reversal of 211975994273 is 372499579112.

211975994273 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., 210563512384 + 1412481889 = 458872^2 + 37583^2 .

It is a cyclic number.

It is not a de Polignac number, because 211975994273 - 2¹⁰ = 211975993249 is a prime.

It is not a weakly prime, because it can be changed into another prime (211975294273) 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, 105987997136 + 105987997137.

It is an arithmetic number, because the mean of its divisors is an integer number (105987997137).

Almost surely, 2^211975994273 is an apocalyptic number.

It is an amenable number.

211975994273 is a deficient number, since it is larger than the sum of its proper divisors (1).

211975994273 is an equidigital number, since it uses as much as digits as its factorization.

211975994273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8573040, while the sum is 59.

The spelling of 211975994273 in words is "two hundred eleven billion, nine hundred seventy-five million, nine hundred ninety-four thousand, two hundred seventy-three".