22144001065 has 24 divisors (see below), whose sum is σ = 28651593024. Its totient is φ = 16398280800.

The previous prime is 22144001059. The next prime is 22144001107. The reversal of 22144001065 is 56010044122.

It is a happy number.

It is not a de Polignac number, because 22144001065 - 2⁷ = 22144000937 is a prime.

It is a super-2 number, since 2×22144001065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10330 + ... + 210700.

It is an arithmetic number, because the mean of its divisors is an integer number (1193816376).

Almost surely, 2^22144001065 is an apocalyptic number.

It is an amenable number.

22144001065 is a deficient number, since it is larger than the sum of its proper divisors (6507591959).

22144001065 is a wasteful number, since it uses less digits than its factorization.

22144001065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200461 (or 200430 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22144001065 its reverse (56010044122), we get a palindrome (78154045187).

The spelling of 22144001065 in words is "twenty-two billion, one hundred forty-four million, one thousand, sixty-five".