2001224500 has 96 divisors (see below), whose sum is σ = 4794806016. Its totient is φ = 723632000.

The previous prime is 2001224497. The next prime is 2001224501. The reversal of 2001224500 is 54221002.

2001224500 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001224501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1082577 + ... + 1084423.

It is an arithmetic number, because the mean of its divisors is an integer number (49945896).

Almost surely, 2^2001224500 is an apocalyptic number.

2001224500 is a gapful number since it is divisible by the number (20) 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 2001224500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2397403008).

2001224500 is an abundant number, since it is smaller than the sum of its proper divisors (2793581516).

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

2001224500 is a wasteful number, since it uses less digits than its factorization.

2001224500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074 (or 2062 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2001224500 is about 44735.0477813537. The cubic root of 2001224500 is about 1260.1781263246.

Adding to 2001224500 its reverse (54221002), we get a palindrome (2055445502).

The spelling of 2001224500 in words is "two billion, one million, two hundred twenty-four thousand, five hundred".