2163122209 has 8 divisors (see below), whose sum is σ = 2238232320. Its totient is φ = 2088046800.

The previous prime is 2163122189. The next prime is 2163122233. The reversal of 2163122209 is 9022213612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2163122209 - 2²⁵ = 2129567777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163122249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227664 + ... + 236974.

It is an arithmetic number, because the mean of its divisors is an integer number (279779040).

Almost surely, 2^2163122209 is an apocalyptic number.

2163122209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2163122209 is a deficient number, since it is larger than the sum of its proper divisors (75110111).

2163122209 is an equidigital number, since it uses as much as digits as its factorization.

2163122209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17351.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2163122209 is about 46509.3776458039. The cubic root of 2163122209 is about 1293.2833470705.

The spelling of 2163122209 in words is "two billion, one hundred sixty-three million, one hundred twenty-two thousand, two hundred nine".