22123213009 has 4 divisors (see below), whose sum is σ = 22403253760. Its totient is φ = 21843172260.

The previous prime is 22123212971. The next prime is 22123213031. The reversal of 22123213009 is 90031232122.

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 22123213009 - 2¹¹ = 22123210961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22123213069) 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, 140020257 + ... + 140020414.

It is an arithmetic number, because the mean of its divisors is an integer number (5600813440).

Almost surely, 2^22123213009 is an apocalyptic number.

It is an amenable number.

22123213009 is a deficient number, since it is larger than the sum of its proper divisors (280040751).

22123213009 is an equidigital number, since it uses as much as digits as its factorization.

22123213009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280040750.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 22123213009 in words is "twenty-two billion, one hundred twenty-three million, two hundred thirteen thousand, nine".