22144324401 has 12 divisors (see below), whose sum is σ = 33170922512. Its totient is φ = 14762882772.

The previous prime is 22144324331. The next prime is 22144324451. The reversal of 22144324401 is 10442344122.

22144324401 is a `hidden beast` number, since 2 + 214 + 4 + 3 + 2 + 440 + 1 = 666.

It is not a de Polignac number, because 22144324401 - 2¹¹ = 22144322353 is a prime.

It is a super-2 number, since 2×22144324401² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22144324451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45564211 + ... + 45564696.

Almost surely, 2^22144324401 is an apocalyptic number.

It is an amenable number.

22144324401 is a deficient number, since it is larger than the sum of its proper divisors (11026598111).

22144324401 is an frugal number, since it uses more digits than its factorization.

22144324401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91128922 (or 91128910 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 22144324401 its reverse (10442344122), we get a palindrome (32586668523).

The spelling of 22144324401 in words is "twenty-two billion, one hundred forty-four million, three hundred twenty-four thousand, four hundred one".