12020552250 has 128 divisors (see below), whose sum is σ = 35396075520. Its totient is φ = 2658888000.

The previous prime is 12020552237. The next prime is 12020552251. The reversal of 12020552250 is 5225502021.

12020552250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12020552250.

It is not an unprimeable number, because it can be changed into a prime (12020552251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125821 + ... + 199679.

It is an arithmetic number, because the mean of its divisors is an integer number (276531840).

Almost surely, 2^12020552250 is an apocalyptic number.

12020552250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020552250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17698037760).

12020552250 is an abundant number, since it is smaller than the sum of its proper divisors (23375523270).

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

12020552250 is a wasteful number, since it uses less digits than its factorization.

12020552250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73917 (or 73907 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The spelling of 12020552250 in words is "twelve billion, twenty million, five hundred fifty-two thousand, two hundred fifty".