2189711011 has 2 divisors, whose sum is σ = 2189711012. Its totient is φ = 2189711010.

The previous prime is 2189710987. The next prime is 2189711039. The reversal of 2189711011 is 1101179812.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2189711011 - 2⁵ = 2189710979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2189711081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094855505 + 1094855506.

It is an arithmetic number, because the mean of its divisors is an integer number (1094855506).

Almost surely, 2^2189711011 is an apocalyptic number.

2189711011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189711011 is an equidigital number, since it uses as much as digits as its factorization.

2189711011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 31.

The square root of 2189711011 is about 46794.3480668339. The cubic root of 2189711011 is about 1298.5607367286.

The spelling of 2189711011 in words is "two billion, one hundred eighty-nine million, seven hundred eleven thousand, eleven".