222225318 has 96 divisors (see below), whose sum is σ = 579159360. Its totient is φ = 60238080.

The previous prime is 222225313. The next prime is 222225319. The reversal of 222225318 is 813522222.

It is a super-2 number, since 2×222225318² = 98768183920402248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222225291 and 222225300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222225313) 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 47 ways as a sum of consecutive naturals, for example, 222396 + ... + 223392.

It is an arithmetic number, because the mean of its divisors is an integer number (6032910).

Almost surely, 2^222225318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222225318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289579680).

222225318 is an abundant number, since it is smaller than the sum of its proper divisors (356934042).

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

222225318 is a wasteful number, since it uses less digits than its factorization.

222225318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1099 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 222225318 is about 14907.2236851803. The cubic root of 222225318 is about 605.7096769651.

The spelling of 222225318 in words is "two hundred twenty-two million, two hundred twenty-five thousand, three hundred eighteen".