222422042 has 4 divisors (see below), whose sum is σ = 333633066. Its totient is φ = 111211020.

The previous prime is 222422041. The next prime is 222422047. The reversal of 222422042 is 240224222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 137616361 + 84805681 = 11731^2 + 9209^2 .

It is not an unprimeable number, because it can be changed into a prime (222422041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605509 + ... + 55605512.

Almost surely, 2^222422042 is an apocalyptic number.

222422042 is a deficient number, since it is larger than the sum of its proper divisors (111211024).

222422042 is a wasteful number, since it uses less digits than its factorization.

222422042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111211023.

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

The square root of 222422042 is about 14913.8205031441. The cubic root of 222422042 is about 605.8883582057. Note that the first 3 decimals are identical.

Adding to 222422042 its reverse (240224222), we get a palindrome (462646264).

The spelling of 222422042 in words is "two hundred twenty-two million, four hundred twenty-two thousand, forty-two".