211000000002111 has 10 divisors (see below), whose sum is σ = 315197530867472. Its totient is φ = 140666666668020.

The previous prime is 211000000002091. The next prime is 211000000002137. The reversal of 211000000002111 is 111200000000112.

It is a happy number.

It is not a de Polignac number, because 211000000002111 - 2⁹ = 211000000001599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211000000002093 and 211000000002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000000002151) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1302469135735 + ... + 1302469135896.

Almost surely, 2^{211000000002111} is an apocalyptic number.

211000000002111 is a deficient number, since it is larger than the sum of its proper divisors (104197530865361).

211000000002111 is an equidigital number, since it uses as much as digits as its factorization.

211000000002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604938271643 (or 2604938271634 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 211000000002111 its reverse (111200000000112), we get a palindrome (322200000002223).

The spelling of 211000000002111 in words is "two hundred eleven trillion, two thousand, one hundred eleven".