123030222 has 64 divisors (see below), whose sum is σ = 288921600. Its totient is φ = 34201440.

The previous prime is 123030203. The next prime is 123030223. The reversal of 123030222 is 222030321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324429 + ... + 324807.

It is an arithmetic number, because the mean of its divisors is an integer number (4514400).

Almost surely, 2^123030222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123030222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144460800).

123030222 is an abundant number, since it is smaller than the sum of its proper divisors (165891378).

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

123030222 is a wasteful number, since it uses less digits than its factorization.

123030222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 123030222 is about 11091.8989357098. The cubic root of 123030222 is about 497.3597116290.

Adding to 123030222 its reverse (222030321), we get a palindrome (345060543).

Subtracting 123030222 from its reverse (222030321), we obtain a palindrome (99000099).

The spelling of 123030222 in words is "one hundred twenty-three million, thirty thousand, two hundred twenty-two".