2022122209 has 4 divisors (see below), whose sum is σ = 2025860500. Its totient is φ = 2018383920.

The previous prime is 2022122203. The next prime is 2022122251. The reversal of 2022122209 is 9022212202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9022212202 = 2 ⋅4511106101.

It can be written as a sum of positive squares in 2 ways, for example, as 1268784400 + 753337809 = 35620^2 + 27447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022122209 - 2⁹ = 2022121697 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 2022122209.

It is not an unprimeable number, because it can be changed into a prime (2022122203) 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, 1868334 + ... + 1869415.

It is an arithmetic number, because the mean of its divisors is an integer number (506465125).

Almost surely, 2^2022122209 is an apocalyptic number.

It is an amenable number.

2022122209 is a deficient number, since it is larger than the sum of its proper divisors (3738291).

2022122209 is an equidigital number, since it uses as much as digits as its factorization.

2022122209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738290.

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

The square root of 2022122209 is about 44968.0131760344. The cubic root of 2022122209 is about 1264.5493995223.

The spelling of 2022122209 in words is "two billion, twenty-two million, one hundred twenty-two thousand, two hundred nine".