22122210009 has 4 divisors (see below), whose sum is σ = 29496280016. Its totient is φ = 14748140004.

The previous prime is 22122210001. The next prime is 22122210079. The reversal of 22122210009 is 90001222122.

It is a happy number.

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 not a de Polignac number, because 22122210009 - 2³ = 22122210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122210001) 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, 3687034999 + ... + 3687035004.

It is an arithmetic number, because the mean of its divisors is an integer number (7374070004).

Almost surely, 2^22122210009 is an apocalyptic number.

It is an amenable number.

22122210009 is a deficient number, since it is larger than the sum of its proper divisors (7374070007).

22122210009 is an equidigital number, since it uses as much as digits as its factorization.

22122210009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374070006.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 22122210009 in words is "twenty-two billion, one hundred twenty-two million, two hundred ten thousand, nine".