22123440001 has 12 divisors (see below), whose sum is σ = 25217004720. Its totient is φ = 19346811120.

The previous prime is 22123439969. The next prime is 22123440011. The reversal of 22123440001 is 10004432122.

It is not a de Polignac number, because 22123440001 - 2⁵ = 22123439969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22123440011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3441735 + ... + 3448156.

It is an arithmetic number, because the mean of its divisors is an integer number (2101417060).

Almost surely, 2^22123440001 is an apocalyptic number.

It is an amenable number.

22123440001 is a deficient number, since it is larger than the sum of its proper divisors (3093564719).

22123440001 is a wasteful number, since it uses less digits than its factorization.

22123440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889936 (or 6889923 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22123440001 its reverse (10004432122), we get a palindrome (32127872123).

The spelling of 22123440001 in words is "twenty-two billion, one hundred twenty-three million, four hundred forty thousand, one".