2116331312211 has 64 divisors (see below), whose sum is σ = 3186557337600. Its totient is φ = 1387981290528.

The previous prime is 2116331312119. The next prime is 2116331312257. The reversal of 2116331312211 is 1122131336112.

2116331312211 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 331 + 312 + 2 + 11 = 666.

It is not a de Polignac number, because 2116331312211 - 2¹⁰ = 2116331311187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2116331312261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 690031500 + ... + 690034566.

It is an arithmetic number, because the mean of its divisors is an integer number (49789958400).

Almost surely, 2^{2116331312211} is an apocalyptic number.

2116331312211 is a deficient number, since it is larger than the sum of its proper divisors (1070226025389).

2116331312211 is a wasteful number, since it uses less digits than its factorization.

2116331312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365 (or 4359 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 2116331312211 its reverse (1122131336112), we get a palindrome (3238462648323).

The spelling of 2116331312211 in words is "two trillion, one hundred sixteen billion, three hundred thirty-one million, three hundred twelve thousand, two hundred eleven".