12120223443 has 16 divisors (see below), whose sum is σ = 17026490880. Its totient is φ = 7647835104.

The previous prime is 12120223439. The next prime is 12120223447. The reversal of 12120223443 is 34432202121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12120223439) and next prime (12120223447).

It is not a de Polignac number, because 12120223443 - 2² = 12120223439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120223447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34971 + ... + 159572.

It is an arithmetic number, because the mean of its divisors is an integer number (1064155680).

Almost surely, 2^12120223443 is an apocalyptic number.

12120223443 is a deficient number, since it is larger than the sum of its proper divisors (4906267437).

12120223443 is a wasteful number, since it uses less digits than its factorization.

12120223443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195658.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12120223443 its reverse (34432202121), we get a palindrome (46552425564).

The spelling of 12120223443 in words is "twelve billion, one hundred twenty million, two hundred twenty-three thousand, four hundred forty-three".