2122022209 has 4 divisors (see below), whose sum is σ = 2122900416. Its totient is φ = 2121144004.

The previous prime is 2122022153. The next prime is 2122022213. The reversal of 2122022209 is 9022202212.

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.

It is a cyclic number.

It is not a de Polignac number, because 2122022209 - 2⁹ = 2122021697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122022209.

It is not an unprimeable number, because it can be changed into a prime (2122022269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435469 + ... + 440314.

It is an arithmetic number, because the mean of its divisors is an integer number (530725104).

Almost surely, 2^2122022209 is an apocalyptic number.

It is an amenable number.

2122022209 is a deficient number, since it is larger than the sum of its proper divisors (878207).

2122022209 is an equidigital number, since it uses as much as digits as its factorization.

2122022209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878206.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2122022209 is about 46065.4122851408. The cubic root of 2122022209 is about 1285.0399860379.

The spelling of 2122022209 in words is "two billion, one hundred twenty-two million, twenty-two thousand, two hundred nine".