222222242 has 16 divisors (see below), whose sum is σ = 364328064. Its totient is φ = 100818000.

The previous prime is 222222241. The next prime is 222222277. The reversal of 222222242 is 242222222.

It is not an unprimeable number, because it can be changed into a prime (222222241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2567 + ... + 21237.

It is an arithmetic number, because the mean of its divisors is an integer number (22770504).

Almost surely, 2^222222242 is an apocalyptic number.

222222242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222222242 is a deficient number, since it is larger than the sum of its proper divisors (142105822).

222222242 is a wasteful number, since it uses less digits than its factorization.

222222242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19225.

The product of its digits is 1024, while the sum is 20.

The square root of 222222242 is about 14907.1205133654. The cubic root of 222222242 is about 605.7068822467.

Subtracting from 222222242 its sum of digits (20), we obtain a palindrome (222222222).

Adding to 222222242 its reverse (242222222), we get a palindrome (464444464).

The spelling of 222222242 in words is "two hundred twenty-two million, two hundred twenty-two thousand, two hundred forty-two".