222240222 has 12 divisors (see below), whose sum is σ = 481520520. Its totient is φ = 74080068.

The previous prime is 222240217. The next prime is 222240223. The reversal of 222240222 is 222042222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12346679 = 222240222 / (2 + 2 + 2 + 2 + 4 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 222240195 and 222240204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222240223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6173322 + ... + 6173357.

It is an arithmetic number, because the mean of its divisors is an integer number (40126710).

Almost surely, 2^222240222 is an apocalyptic number.

222240222 is an abundant number, since it is smaller than the sum of its proper divisors (259280298).

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

222240222 is a wasteful number, since it uses less digits than its factorization.

222240222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12346687 (or 12346684 counting only the distinct ones).

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

The square root of 222240222 is about 14907.7235686741. The cubic root of 222240222 is about 605.7232177193.

Adding to 222240222 its reverse (222042222), we get a palindrome (444282444).

The spelling of 222240222 in words is "two hundred twenty-two million, two hundred forty thousand, two hundred twenty-two".