211012002011 has 4 divisors (see below), whose sum is σ = 211059865800. Its totient is φ = 210964138224.

The previous prime is 211012002001. The next prime is 211012002073. The reversal of 211012002011 is 110200210112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211012002011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211012001983 and 211012002001.

It is not an unprimeable number, because it can be changed into a prime (211012002001) 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 in 3 ways as a sum of consecutive naturals, for example, 23925281 + ... + 23934098.

It is an arithmetic number, because the mean of its divisors is an integer number (52764966450).

Almost surely, 2^211012002011 is an apocalyptic number.

211012002011 is a deficient number, since it is larger than the sum of its proper divisors (47863789).

211012002011 is an equidigital number, since it uses as much as digits as its factorization.

211012002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47863788.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211012002011 its reverse (110200210112), we get a palindrome (321212212123).

The spelling of 211012002011 in words is "two hundred eleven billion, twelve million, two thousand, eleven".