12231120222 has 24 divisors (see below), whose sum is σ = 26504399064. Its totient is φ = 4076480304.

The previous prime is 12231120197. The next prime is 12231120227. The reversal of 12231120222 is 22202113221.

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 = 12231120195 and 12231120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231120227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100668 + ... + 186000.

It is an arithmetic number, because the mean of its divisors is an integer number (1104349961).

Almost surely, 2^12231120222 is an apocalyptic number.

12231120222 is an abundant number, since it is smaller than the sum of its proper divisors (14273278842).

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

12231120222 is a wasteful number, since it uses less digits than its factorization.

12231120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93304 (or 93301 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12231120222 its reverse (22202113221), we get a palindrome (34433233443).

The spelling of 12231120222 in words is "twelve billion, two hundred thirty-one million, one hundred twenty thousand, two hundred twenty-two".