224221242 has 32 divisors (see below), whose sum is σ = 539481600. Its totient is φ = 60691248.

The previous prime is 224221241. The next prime is 224221253. The reversal of 224221242 is 242122422.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (224221241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139692 + ... + 141287.

It is an arithmetic number, because the mean of its divisors is an integer number (16858800).

Almost surely, 2^224221242 is an apocalyptic number.

224221242 is an abundant number, since it is smaller than the sum of its proper divisors (315260358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224221242 is a wasteful number, since it uses less digits than its factorization.

224221242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281010.

The product of its digits is 1024, while the sum is 21.

The square root of 224221242 is about 14974.0188994137. The cubic root of 224221242 is about 607.5176753143.

Adding to 224221242 its reverse (242122422), we get a palindrome (466343664).

The spelling of 224221242 in words is "two hundred twenty-four million, two hundred twenty-one thousand, two hundred forty-two".