211011003211 has 4 divisors (see below), whose sum is σ = 215500599072. Its totient is φ = 206521407352.

The previous prime is 211011003163. The next prime is 211011003221. The reversal of 211011003211 is 112300110112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 211011003211 - 2¹¹ = 211011001163 is a prime.

It is a super-2 number, since 2×211011003211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211011003191 and 211011003200.

It is not an unprimeable number, because it can be changed into a prime (211011003221) 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, 2244797860 + ... + 2244797953.

It is an arithmetic number, because the mean of its divisors is an integer number (53875149768).

Almost surely, 2^211011003211 is an apocalyptic number.

211011003211 is a deficient number, since it is larger than the sum of its proper divisors (4489595861).

211011003211 is an equidigital number, since it uses as much as digits as its factorization.

211011003211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489595860.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211011003211 its reverse (112300110112), we get a palindrome (323311113323).

The spelling of 211011003211 in words is "two hundred eleven billion, eleven million, three thousand, two hundred eleven".