22248074321 has 4 divisors (see below), whose sum is σ = 24270626544. Its totient is φ = 20225522100.

The previous prime is 22248074309. The next prime is 22248074353. The reversal of 22248074321 is 12347084222.

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.

It is a cyclic number.

It is not a de Polignac number, because 22248074321 - 2¹⁰ = 22248073297 is a prime.

It is a super-2 number, since 2×22248074321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22248074621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011276095 + ... + 1011276116.

It is an arithmetic number, because the mean of its divisors is an integer number (6067656636).

Almost surely, 2^22248074321 is an apocalyptic number.

It is an amenable number.

22248074321 is a deficient number, since it is larger than the sum of its proper divisors (2022552223).

22248074321 is a wasteful number, since it uses less digits than its factorization.

22248074321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022552222.

The product of its (nonzero) digits is 43008, while the sum is 35.

Subtracting from 22248074321 its reverse (12347084222), we obtain a palindrome (9900990099).

The spelling of 22248074321 in words is "twenty-two billion, two hundred forty-eight million, seventy-four thousand, three hundred twenty-one".