211222210311 has 12 divisors (see below), whose sum is σ = 348684283792. Its totient is φ = 120698405856.

The previous prime is 211222210289. The next prime is 211222210321. The reversal of 211222210311 is 113012222112.

211222210311 is a `hidden beast` number, since 21 + 122 + 2 + 210 + 311 = 666.

211222210311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211222210311 - 2¹⁷ = 211222079239 is a prime.

It is a super-2 number, since 2×211222210311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222210321) 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 11 ways as a sum of consecutive naturals, for example, 1676366686 + ... + 1676366811.

Almost surely, 2^211222210311 is an apocalyptic number.

211222210311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211222210311 is a deficient number, since it is larger than the sum of its proper divisors (137462073481).

211222210311 is a wasteful number, since it uses less digits than its factorization.

211222210311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352733510 (or 3352733507 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211222210311 its reverse (113012222112), we get a palindrome (324234432423).

The spelling of 211222210311 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred ten thousand, three hundred eleven".