2211157211 has 2 divisors, whose sum is σ = 2211157212. Its totient is φ = 2211157210.

The previous prime is 2211157199. The next prime is 2211157213. The reversal of 2211157211 is 1127511122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211157211 is a prime.

Together with 2211157213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2211157213) 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 as a sum of consecutive naturals, namely, 1105578605 + 1105578606.

It is an arithmetic number, because the mean of its divisors is an integer number (1105578606).

Almost surely, 2^2211157211 is an apocalyptic number.

2211157211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211157211 is an equidigital number, since it uses as much as digits as its factorization.

2211157211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 280, while the sum is 23.

The square root of 2211157211 is about 47022.9434531698. The cubic root of 2211157211 is about 1302.7863728324.

Adding to 2211157211 its reverse (1127511122), we get a palindrome (3338668333).

The spelling of 2211157211 in words is "two billion, two hundred eleven million, one hundred fifty-seven thousand, two hundred eleven".