22144223001 has 12 divisors (see below), whose sum is σ = 31364598512. Its totient is φ = 13894413888.

The previous prime is 22144222957. The next prime is 22144223009. The reversal of 22144223001 is 10032244122.

It is not a de Polignac number, because 22144223001 - 2¹¹ = 22144220953 is a prime.

It is a super-2 number, since 2×22144223001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22144223009) 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 11 ways as a sum of consecutive naturals, for example, 12769735 + ... + 12771468.

Almost surely, 2^22144223001 is an apocalyptic number.

It is an amenable number.

22144223001 is a deficient number, since it is larger than the sum of its proper divisors (9220375511).

22144223001 is a wasteful number, since it uses less digits than its factorization.

22144223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25541240 (or 25541223 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22144223001 its reverse (10032244122), we get a palindrome (32176467123).

The spelling of 22144223001 in words is "twenty-two billion, one hundred forty-four million, two hundred twenty-three thousand, one".