233130222 has 48 divisors (see below), whose sum is σ = 545633088. Its totient is φ = 71513280.

The previous prime is 233130203. The next prime is 233130253. The reversal of 233130222 is 222031332.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 233130195 and 233130204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85947 + ... + 88617.

It is an arithmetic number, because the mean of its divisors is an integer number (11367356).

Almost surely, 2^233130222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233130222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272816544).

233130222 is an abundant number, since it is smaller than the sum of its proper divisors (312502866).

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

233130222 is a wasteful number, since it uses less digits than its factorization.

233130222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3062 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 233130222 is about 15268.6024900775. The cubic root of 233130222 is about 615.4595652839.

Adding to 233130222 its reverse (222031332), we get a palindrome (455161554).

The spelling of 233130222 in words is "two hundred thirty-three million, one hundred thirty thousand, two hundred twenty-two".