2211159989 has 4 divisors (see below), whose sum is σ = 2211305856. Its totient is φ = 2211014124.

The previous prime is 2211159919. The next prime is 2211160001. The reversal of 2211159989 is 9899511122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9899511122 = 2 ⋅4949755561.

It is a cyclic number.

It is not a de Polignac number, because 2211159989 - 2⁸ = 2211159733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211159919) 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, 47159 + ... + 81524.

It is an arithmetic number, because the mean of its divisors is an integer number (552826464).

Almost surely, 2^2211159989 is an apocalyptic number.

It is an amenable number.

2211159989 is a deficient number, since it is larger than the sum of its proper divisors (145867).

2211159989 is a wasteful number, since it uses less digits than its factorization.

2211159989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145866.

The product of its digits is 116640, while the sum is 47.

The square root of 2211159989 is about 47022.9729919324. The cubic root of 2211159989 is about 1302.7869184198.

The spelling of 2211159989 in words is "two billion, two hundred eleven million, one hundred fifty-nine thousand, nine hundred eighty-nine".