222223122 has 64 divisors (see below), whose sum is σ = 547643520. Its totient is φ = 66225600.

The previous prime is 222223109. The next prime is 222223151. The reversal of 222223122 is 221322222.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a junction number, because it is equal to n+sod(n) for n = 222223095 and 222223104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33168 + ... + 39300.

It is an arithmetic number, because the mean of its divisors is an integer number (8556930).

Almost surely, 2^222223122 is an apocalyptic number.

222223122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 222223122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273821760).

222223122 is an abundant number, since it is smaller than the sum of its proper divisors (325420398).

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

222223122 is a wasteful number, since it uses less digits than its factorization.

222223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216 (or 6210 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 222223122 is about 14907.1500294322. The cubic root of 222223122 is about 605.7076817786.

Adding to 222223122 its reverse (221322222), we get a palindrome (443545344).

The spelling of 222223122 in words is "two hundred twenty-two million, two hundred twenty-three thousand, one hundred twenty-two".