2022021109 has 4 divisors (see below), whose sum is σ = 2022384204. Its totient is φ = 2021658016.

The previous prime is 2022021077. The next prime is 2022021139. The reversal of 2022021109 is 9011202202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111894084 + 1910127025 = 10578^2 + 43705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022021109 - 2⁵ = 2022021077 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 (2022021139) 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, 173062 + ... + 184375.

It is an arithmetic number, because the mean of its divisors is an integer number (505596051).

Almost surely, 2^2022021109 is an apocalyptic number.

It is an amenable number.

2022021109 is a deficient number, since it is larger than the sum of its proper divisors (363095).

2022021109 is an equidigital number, since it uses as much as digits as its factorization.

2022021109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363094.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2022021109 is about 44966.8890295960. The cubic root of 2022021109 is about 1264.5283246215.

The spelling of 2022021109 in words is "two billion, twenty-two million, twenty-one thousand, one hundred nine".