12120330222 has 144 divisors (see below), whose sum is σ = 35889143472. Its totient is φ = 2905943040.

The previous prime is 12120330163. The next prime is 12120330239. The reversal of 12120330222 is 22203302121.

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 = 12120330195 and 12120330204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 78078 + ... + 174174.

It is an arithmetic number, because the mean of its divisors is an integer number (249230163).

Almost surely, 2^12120330222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12120330222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17944571736).

12120330222 is an abundant number, since it is smaller than the sum of its proper divisors (23768813250).

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

12120330222 is a wasteful number, since it uses less digits than its factorization.

12120330222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96143 (or 96133 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12120330222 its reverse (22203302121), we get a palindrome (34323632343).

The spelling of 12120330222 in words is "twelve billion, one hundred twenty million, three hundred thirty thousand, two hundred twenty-two".