211001222011 has 2 divisors, whose sum is σ = 211001222012. Its totient is φ = 211001222010.

The previous prime is 211001221999. The next prime is 211001222053. The reversal of 211001222011 is 110222100112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211001222011 - 2⁹ = 211001221499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211001221982 and 211001222000.

It is not a weakly prime, because it can be changed into another prime (211001223011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105500611005 + 105500611006.

It is an arithmetic number, because the mean of its divisors is an integer number (105500611006).

Almost surely, 2^211001222011 is an apocalyptic number.

211001222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211001222011 is an equidigital number, since it uses as much as digits as its factorization.

211001222011 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 211001222011 its reverse (110222100112), we get a palindrome (321223322123).

The spelling of 211001222011 in words is "two hundred eleven billion, one million, two hundred twenty-two thousand, eleven".