2001224043 has 96 divisors (see below), whose sum is σ = 3876364800. Its totient is φ = 1009495872.

The previous prime is 2001224033. The next prime is 2001224047. The reversal of 2001224043 is 3404221002.

It is not a de Polignac number, because 2001224043 - 2⁸ = 2001223787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001224047) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 393048 + ... + 398106.

It is an arithmetic number, because the mean of its divisors is an integer number (40378800).

Almost surely, 2^2001224043 is an apocalyptic number.

2001224043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2001224043 is a deficient number, since it is larger than the sum of its proper divisors (1875140757).

2001224043 is a wasteful number, since it uses less digits than its factorization.

2001224043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2001224043 is about 44735.0426735015. The cubic root of 2001224043 is about 1260.1780303997.

Adding to 2001224043 its reverse (3404221002), we get a palindrome (5405445045).

The spelling of 2001224043 in words is "two billion, one million, two hundred twenty-four thousand, forty-three".