12020244500 has 96 divisors (see below), whose sum is σ = 28685494656. Its totient is φ = 4363872000.

The previous prime is 12020244473. The next prime is 12020244517. The reversal of 12020244500 is 544202021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4327112 + ... + 4329888.

It is an arithmetic number, because the mean of its divisors is an integer number (298807236).

Almost surely, 2^12020244500 is an apocalyptic number.

12020244500 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 12020244500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14342747328).

12020244500 is an abundant number, since it is smaller than the sum of its proper divisors (16665250156).

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

12020244500 is a wasteful number, since it uses less digits than its factorization.

12020244500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594 (or 3582 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 12020244500 its reverse (544202021), we get a palindrome (12564446521).

The spelling of 12020244500 in words is "twelve billion, twenty million, two hundred forty-four thousand, five hundred".