222555222 has 128 divisors (see below), whose sum is σ = 551577600. Its totient is φ = 66261888.

The previous prime is 222555197. The next prime is 222555241.

222555222 is nontrivially palindromic in base 10.

222555222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1332583 + ... + 1332749.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^222555222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222555222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275788800).

222555222 is an abundant number, since it is smaller than the sum of its proper divisors (329022378).

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

222555222 is a wasteful number, since it uses less digits than its factorization.

222555222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 261 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 222555222 is about 14918.2848209839. The cubic root of 222555222 is about 606.0092636561.

The spelling of 222555222 in words is "two hundred twenty-two million, five hundred fifty-five thousand, two hundred twenty-two".