22001011009 has 4 divisors (see below), whose sum is σ = 22007231280. Its totient is φ = 21994790740.

The previous prime is 22001011001. The next prime is 22001011061. The reversal of 22001011009 is 90011010022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90011010022 = 2 ⋅45005505011.

It is a cyclic number.

It is not a de Polignac number, because 22001011009 - 2³ = 22001011001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22001010983 and 22001011001.

It is not an unprimeable number, because it can be changed into a prime (22001011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104827 + ... + 3111904.

It is an arithmetic number, because the mean of its divisors is an integer number (5501807820).

Almost surely, 2^22001011009 is an apocalyptic number.

It is an amenable number.

22001011009 is a deficient number, since it is larger than the sum of its proper divisors (6220271).

22001011009 is an equidigital number, since it uses as much as digits as its factorization.

22001011009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220270.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 22001011009 in words is "twenty-two billion, one million, eleven thousand, nine".