12231130212 has 72 divisors (see below), whose sum is σ = 35368761792. Its totient is φ = 3491208000.

The previous prime is 12231130201. The next prime is 12231130213. The reversal of 12231130212 is 21203113221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12231130213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241762 + ... + 287942.

Almost surely, 2^12231130212 is an apocalyptic number.

12231130212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231130212 is an abundant number, since it is smaller than the sum of its proper divisors (23137631580).

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

12231130212 is a wasteful number, since it uses less digits than its factorization.

12231130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47249 (or 47244 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12231130212 its reverse (21203113221), we get a palindrome (33434243433).

The spelling of 12231130212 in words is "twelve billion, two hundred thirty-one million, one hundred thirty thousand, two hundred twelve".