211200122011 has 2 divisors, whose sum is σ = 211200122012. Its totient is φ = 211200122010.

The previous prime is 211200121981. The next prime is 211200122057. The reversal of 211200122011 is 110221002112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211200122011 - 2⁹ = 211200121499 is a prime.

It is a super-2 number, since 2×211200122011² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211200121982 and 211200122000.

It is not a weakly prime, because it can be changed into another prime (211200122711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600061005 + 105600061006.

It is an arithmetic number, because the mean of its divisors is an integer number (105600061006).

Almost surely, 2^211200122011 is an apocalyptic number.

211200122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200122011 is an equidigital number, since it uses as much as digits as its factorization.

211200122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211200122011 its reverse (110221002112), we get a palindrome (321421124123).

The spelling of 211200122011 in words is "two hundred eleven billion, two hundred million, one hundred twenty-two thousand, eleven".