222443221242 has 64 divisors (see below), whose sum is σ = 501399797760. Its totient is φ = 65178801600.

The previous prime is 222443221241. The next prime is 222443221243. The reversal of 222443221242 is 242122344222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222443221241) and next prime (222443221243).

It is not an unprimeable number, because it can be changed into a prime (222443221241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2470303 + ... + 2558765.

It is an arithmetic number, because the mean of its divisors is an integer number (7834371840).

Almost surely, 2^222443221242 is an apocalyptic number.

222443221242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222443221242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250699898880).

222443221242 is an abundant number, since it is smaller than the sum of its proper divisors (278956576518).

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

222443221242 is a wasteful number, since it uses less digits than its factorization.

222443221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89739.

The product of its digits is 24576, while the sum is 30.

Adding to 222443221242 its reverse (242122344222), we get a palindrome (464565565464).

The spelling of 222443221242 in words is "two hundred twenty-two billion, four hundred forty-three million, two hundred twenty-one thousand, two hundred forty-two".