12012097500 has 480 divisors, whose sum is σ = 42677588800. Its totient is φ = 2956824000.

The previous prime is 12012097477. The next prime is 12012097519. The reversal of 12012097500 is 579021021.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 2925 × 1755 × 2340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 924007494 + ... + 924007506.

Almost surely, 2^12012097500 is an apocalyptic number.

12012097500 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 12012097500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21338794400).

12012097500 is an abundant number, since it is smaller than the sum of its proper divisors (30665491300).

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

12012097500 is an frugal number, since it uses more digits than its factorization.

12012097500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The spelling of 12012097500 in words is "twelve billion, twelve million, ninety-seven thousand, five hundred".