2211166011 has 4 divisors (see below), whose sum is σ = 2948221352. Its totient is φ = 1474110672.

The previous prime is 2211165977. The next prime is 2211166031. The reversal of 2211166011 is 1106611122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2211166011 - 2⁹ = 2211165499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211166031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368527666 + ... + 368527671.

It is an arithmetic number, because the mean of its divisors is an integer number (737055338).

Almost surely, 2^2211166011 is an apocalyptic number.

2211166011 is a deficient number, since it is larger than the sum of its proper divisors (737055341).

2211166011 is an equidigital number, since it uses as much as digits as its factorization.

2211166011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737055340.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2211166011 is about 47023.0370244203. The cubic root of 2211166011 is about 1302.7881011136.

Adding to 2211166011 its reverse (1106611122), we get a palindrome (3317777133).

The spelling of 2211166011 in words is "two billion, two hundred eleven million, one hundred sixty-six thousand, eleven".