222202242 has 48 divisors (see below), whose sum is σ = 506014080. Its totient is φ = 70380576.

The previous prime is 222202237. The next prime is 222202243. The reversal of 222202242 is 242202222.

It is a happy number.

222202242 is a `hidden beast` number, since 222 + 202 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222202243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24759 + ... + 32517.

It is an arithmetic number, because the mean of its divisors is an integer number (10541960).

Almost surely, 2^222202242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222202242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253007040).

222202242 is an abundant number, since it is smaller than the sum of its proper divisors (283811838).

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

222202242 is a wasteful number, since it uses less digits than its factorization.

222202242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847 (or 7844 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222202242 is about 14906.4496779079. The cubic root of 222202242 is about 605.6887104967.

Adding to 222202242 its reverse (242202222), we get a palindrome (464404464).

The spelling of 222202242 in words is "two hundred twenty-two million, two hundred two thousand, two hundred forty-two".