22221120243 has 8 divisors (see below), whose sum is σ = 33860754688. Its totient is φ = 12697782984.

The previous prime is 22221120241. The next prime is 22221120281. The reversal of 22221120243 is 34202112222.

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

It is not a de Polignac number, because 22221120243 - 2¹ = 22221120241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1058148583 = 22221120243 / (2 + 2 + 2 + 2 + 1 + 1 + 2 + 0 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221120241) 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, 529074271 + ... + 529074312.

It is an arithmetic number, because the mean of its divisors is an integer number (4232594336).

Almost surely, 2^22221120243 is an apocalyptic number.

22221120243 is a deficient number, since it is larger than the sum of its proper divisors (11639634445).

22221120243 is a wasteful number, since it uses less digits than its factorization.

22221120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058148593.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22221120243 its reverse (34202112222), we get a palindrome (56423232465).

The spelling of 22221120243 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, two hundred forty-three".