2211305211 has 16 divisors (see below), whose sum is σ = 3308447520. Its totient is φ = 1459605600.

The previous prime is 2211305189. The next prime is 2211305219. The reversal of 2211305211 is 1125031122.

It is not a de Polignac number, because 2211305211 - 2⁶ = 2211305147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211305219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402720 + ... + 408173.

It is an arithmetic number, because the mean of its divisors is an integer number (206777970).

Almost surely, 2^2211305211 is an apocalyptic number.

2211305211 is a deficient number, since it is larger than the sum of its proper divisors (1097142309).

2211305211 is a wasteful number, since it uses less digits than its factorization.

2211305211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811003 (or 810997 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2211305211 is about 47024.5171267074. The cubic root of 2211305211 is about 1302.8154387713.

Adding to 2211305211 its reverse (1125031122), we get a palindrome (3336336333).

The spelling of 2211305211 in words is "two billion, two hundred eleven million, three hundred five thousand, two hundred eleven".