22224144021 has 8 divisors (see below), whose sum is σ = 29831066400. Its totient is φ = 14716658832.

The previous prime is 22224144011. The next prime is 22224144031. The reversal of 22224144021 is 12044142222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22224144011) and next prime (22224144031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22224144021 - 2⁵ = 22224143989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22224143982 and 22224144000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224144011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24858775 + ... + 24859668.

It is an arithmetic number, because the mean of its divisors is an integer number (3728883300).

Almost surely, 2^22224144021 is an apocalyptic number.

It is an amenable number.

22224144021 is a deficient number, since it is larger than the sum of its proper divisors (7606922379).

22224144021 is a wasteful number, since it uses less digits than its factorization.

22224144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49718595.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 22224144021 its reverse (12044142222), we get a palindrome (34268286243).

The spelling of 22224144021 in words is "twenty-two billion, two hundred twenty-four million, one hundred forty-four thousand, twenty-one".