22222243 has 4 divisors (see below), whose sum is σ = 22256928. Its totient is φ = 22187560.

The previous prime is 22222223. The next prime is 22222253. The reversal of 22222243 is 34222222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22222243 - 2¹⁷ = 22091171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22222243.

It is not an unprimeable number, because it can be changed into a prime (22222223) 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, 16363 + ... + 17668.

It is an arithmetic number, because the mean of its divisors is an integer number (5564232).

Almost surely, 2^22222243 is an apocalyptic number.

22222243 is a deficient number, since it is larger than the sum of its proper divisors (34685).

22222243 is an equidigital number, since it uses as much as digits as its factorization.

22222243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34684.

The product of its digits is 768, while the sum is 19.

The square root of 22222243 is about 4714.0474117259. The cubic root of 22222243 is about 281.1443093905.

Adding to 22222243 its reverse (34222222), we get a palindrome (56444465).

It can be divided in two parts, 2222 and 2243, that added together give a triangular number (4465 = T₉₄).

The spelling of 22222243 in words is "twenty-two million, two hundred twenty-two thousand, two hundred forty-three".