303222222 has 48 divisors (see below), whose sum is σ = 691037568. Its totient is φ = 95958720.

The previous prime is 303222209. The next prime is 303222223. The reversal of 303222222 is 222222303.

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

303222222 is a modest number, since divided by 22222 gives 3032 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 303222195 and 303222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303222223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24448 + ... + 34700.

It is an arithmetic number, because the mean of its divisors is an integer number (14396616).

Almost surely, 2^303222222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345518784).

303222222 is an abundant number, since it is smaller than the sum of its proper divisors (387815346).

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

303222222 is a wasteful number, since it uses less digits than its factorization.

303222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10345 (or 10342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 303222222 is about 17413.2771757645. The cubic root of 303222222 is about 671.8211551066.

Adding to 303222222 its reverse (222222303), we get a palindrome (525444525).

The spelling of 303222222 in words is "three hundred three million, two hundred twenty-two thousand, two hundred twenty-two".