22242441321 has 45 divisors (see below), whose sum is σ = 33836811591. Its totient is φ = 14560738848.

The previous prime is 22242441307. The next prime is 22242441359. The reversal of 22242441321 is 12314424222.

It is a happy number.

The square root of 22242441321 is 149139.

It is a perfect power (a square), and thus also a powerful number.

22242441321 is a `hidden beast` number, since 2 + 2 + 242 + 4 + 413 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12625893225 + 9616548096 = 112365^2 + 98064^2 .

It is not a de Polignac number, because 22242441321 - 2⁹ = 22242440809 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (22242445321) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 97984210 + ... + 97984436.

Almost surely, 2^22242441321 is an apocalyptic number.

22242441321 is the 149139-th square number.

22242441321 is the 74570-th centered octagonal number.

It is an amenable number.

22242441321 is a deficient number, since it is larger than the sum of its proper divisors (11594370270).

22242441321 is an frugal number, since it uses more digits than its factorization.

22242441321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 303 counting only the distinct ones).

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

Adding to 22242441321 its reverse (12314424222), we get a palindrome (34556865543).

The spelling of 22242441321 in words is "twenty-two billion, two hundred forty-two million, four hundred forty-one thousand, three hundred twenty-one".