222042442 has 8 divisors (see below), whose sum is σ = 333127296. Its totient is φ = 111000012.

The previous prime is 222042433. The next prime is 222042449. The reversal of 222042442 is 244240222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (222042449) 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 3 ways as a sum of consecutive naturals, for example, 12903 + ... + 24709.

It is an arithmetic number, because the mean of its divisors is an integer number (41640912).

Almost surely, 2^222042442 is an apocalyptic number.

222042442 is a deficient number, since it is larger than the sum of its proper divisors (111084854).

222042442 is a wasteful number, since it uses less digits than its factorization.

222042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 222042442 is about 14901.0886179500. The cubic root of 222042442 is about 605.5434790373.

Adding to 222042442 its reverse (244240222), we get a palindrome (466282664).

The spelling of 222042442 in words is "two hundred twenty-two million, forty-two thousand, four hundred forty-two".