222002222 has 32 divisors (see below), whose sum is σ = 375803904. Its totient is φ = 97653600.

The previous prime is 222002219. The next prime is 222002227. The reversal of 222002222 is 222200222.

It is a happy number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222002197 and 222002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002227) 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 15 ways as a sum of consecutive naturals, for example, 51947 + ... + 56057.

It is an arithmetic number, because the mean of its divisors is an integer number (11743872).

Almost surely, 2^222002222 is an apocalyptic number.

222002222 is a deficient number, since it is larger than the sum of its proper divisors (153801682).

222002222 is a wasteful number, since it uses less digits than its factorization.

222002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222002222 is about 14899.7389910025. The cubic root of 222002222 is about 605.5069148124.

Adding to 222002222 its reverse (222200222), we get a palindrome (444202444).

It can be divided in two parts, 22200222 and 2, that multiplied together give a palindrome (44400444).

The spelling of 222002222 in words is "two hundred twenty-two million, two thousand, two hundred twenty-two".