222422222 has 16 divisors (see below), whose sum is σ = 364258944. Its totient is φ = 101019000.

The previous prime is 222422177. The next prime is 222422267. The reversal of 222422222 is 222224222.

222422222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222422177) and next prime (222422267).

222422222 is a modest number, since divided by 22222 gives 2224 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 222422194 and 222422203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29897 + ... + 36587.

It is an arithmetic number, because the mean of its divisors is an integer number (22766184).

Almost surely, 2^222422222 is an apocalyptic number.

222422222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222422222 is a deficient number, since it is larger than the sum of its proper divisors (141836722).

222422222 is a wasteful number, since it uses less digits than its factorization.

222422222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8215.

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

The square root of 222422222 is about 14913.8265378138. The cubic root of 222422222 is about 605.8885216485. Note that the first 3 decimals are identical.

Adding to 222422222 its reverse (222224222), we get a palindrome (444646444).

The spelling of 222422222 in words is "two hundred twenty-two million, four hundred twenty-two thousand, two hundred twenty-two".