211200111011 has 2 divisors, whose sum is σ = 211200111012. Its totient is φ = 211200111010.

The previous prime is 211200110987. The next prime is 211200111037. The reversal of 211200111011 is 110111002112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211200111011 - 2²² = 211195916707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211200110983 and 211200111001.

It is not a weakly prime, because it can be changed into another prime (211200111091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600055505 + 105600055506.

It is an arithmetic number, because the mean of its divisors is an integer number (105600055506).

Almost surely, 2^211200111011 is an apocalyptic number.

211200111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200111011 is an equidigital number, since it uses as much as digits as its factorization.

211200111011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211200111011 its reverse (110111002112), we get a palindrome (321311113123).

The spelling of 211200111011 in words is "two hundred eleven billion, two hundred million, one hundred eleven thousand, eleven".