12231210012 has 48 divisors (see below), whose sum is σ = 32622868992. Its totient is φ = 3493955520.

The previous prime is 12231210011. The next prime is 12231210023. The reversal of 12231210012 is 21001213221.

It is a junction number, because it is equal to n+sod(n) for n = 12231209973 and 12231210000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231210011) 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, 562462 + ... + 583802.

It is an arithmetic number, because the mean of its divisors is an integer number (679643104).

Almost surely, 2^12231210012 is an apocalyptic number.

12231210012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231210012 is an abundant number, since it is smaller than the sum of its proper divisors (20391658980).

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

12231210012 is a wasteful number, since it uses less digits than its factorization.

12231210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28178 (or 28176 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12231210012 its reverse (21001213221), we get a palindrome (33232423233).

The spelling of 12231210012 in words is "twelve billion, two hundred thirty-one million, two hundred ten thousand, twelve".