211911740227 has 8 divisors (see below), whose sum is σ = 231425299440. Its totient is φ = 192439656960.

The previous prime is 211911740207. The next prime is 211911740269. The reversal of 211911740227 is 722047119112.

211911740227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211911740227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211911740207) 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 in 7 ways as a sum of consecutive naturals, for example, 10358298 + ... + 10378735.

It is an arithmetic number, because the mean of its divisors is an integer number (28928162430).

Almost surely, 2^211911740227 is an apocalyptic number.

211911740227 is a deficient number, since it is larger than the sum of its proper divisors (19513559213).

211911740227 is a wasteful number, since it uses less digits than its factorization.

211911740227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20737973.

The product of its (nonzero) digits is 14112, while the sum is 37.

Adding to 211911740227 its reverse (722047119112), we get a palindrome (933958859339).

The spelling of 211911740227 in words is "two hundred eleven billion, nine hundred eleven million, seven hundred forty thousand, two hundred twenty-seven".