22220220109 has 4 divisors (see below), whose sum is σ = 22221180640. Its totient is φ = 22219259580.

The previous prime is 22220220091. The next prime is 22220220193. The reversal of 22220220109 is 90102202222.

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 22220220109 - 2¹³ = 22220211917 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 22220220109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220220199) 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, 444687 + ... + 492124.

It is an arithmetic number, because the mean of its divisors is an integer number (5555295160).

Almost surely, 2^22220220109 is an apocalyptic number.

It is an amenable number.

22220220109 is a deficient number, since it is larger than the sum of its proper divisors (960531).

22220220109 is an equidigital number, since it uses as much as digits as its factorization.

22220220109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960530.

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

The spelling of 22220220109 in words is "twenty-two billion, two hundred twenty million, two hundred twenty thousand, one hundred nine".