12100390720 has 168 divisors, whose sum is σ = 31880556000. Its totient is φ = 4338416640.

The previous prime is 12100390699. The next prime is 12100390723. The reversal of 12100390720 is 2709300121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100390723) 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, 24249031 + ... + 24249529.

Almost surely, 2^12100390720 is an apocalyptic number.

12100390720 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 12100390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15940278000).

12100390720 is an abundant number, since it is smaller than the sum of its proper divisors (19780165280).

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

12100390720 is an equidigital number, since it uses as much as digits as its factorization.

12100390720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 12100390720 its reverse (2709300121), we get a palindrome (14809690841).

The spelling of 12100390720 in words is "twelve billion, one hundred million, three hundred ninety thousand, seven hundred twenty".