2211011311 has 2 divisors, whose sum is σ = 2211011312. Its totient is φ = 2211011310.

The previous prime is 2211011303. The next prime is 2211011317. The reversal of 2211011311 is 1131101122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211011311 - 2³ = 2211011303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211011291 and 2211011300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211011317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105505655 + 1105505656.

It is an arithmetic number, because the mean of its divisors is an integer number (1105505656).

Almost surely, 2^2211011311 is an apocalyptic number.

2211011311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211011311 is an equidigital number, since it uses as much as digits as its factorization.

2211011311 is an evil number, because the sum of its binary digits is even.

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

The square root of 2211011311 is about 47021.3920572328. The cubic root of 2211011311 is about 1302.7577180460.

Adding to 2211011311 its reverse (1131101122), we get a palindrome (3342112433).

The spelling of 2211011311 in words is "two billion, two hundred eleven million, eleven thousand, three hundred eleven".