12012230000 has 100 divisors (see below), whose sum is σ = 29225776008. Its totient is φ = 4781280000.

The previous prime is 12012229973. The next prime is 12012230003. The reversal of 12012230000 is 3221021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012230003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2107154 + ... + 2112846.

Almost surely, 2^12012230000 is an apocalyptic number.

12012230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14612888004).

12012230000 is an abundant number, since it is smaller than the sum of its proper divisors (17213546008).

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

12012230000 is an equidigital number, since it uses as much as digits as its factorization.

12012230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932 (or 5911 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12012230000 its reverse (3221021), we get a palindrome (12015451021).

The spelling of 12012230000 in words is "twelve billion, twelve million, two hundred thirty thousand".