222211222 has 8 divisors (see below), whose sum is σ = 334157616. Its totient is φ = 110825352.

The previous prime is 222211201. The next prime is 222211247. The reversal of 222211222 is 222112222.

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

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222211196 and 222211205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139138 + ... + 140725.

It is an arithmetic number, because the mean of its divisors is an integer number (41769702).

Almost surely, 2^222211222 is an apocalyptic number.

222211222 is a deficient number, since it is larger than the sum of its proper divisors (111946394).

222211222 is a wasteful number, since it uses less digits than its factorization.

222211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280262.

The product of its digits is 128, while the sum is 16.

The square root of 222211222 is about 14906.7508867627. The cubic root of 222211222 is about 605.6968697473.

Adding to 222211222 its reverse (222112222), we get a palindrome (444323444).

It can be divided in two parts, 2 and 22211222, that multiplied together give a palindrome (44422444).

The spelling of 222211222 in words is "two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-two".