2001224193 has 4 divisors (see below), whose sum is σ = 2668298928. Its totient is φ = 1334149460.

The previous prime is 2001224177. The next prime is 2001224213. The reversal of 2001224193 is 3914221002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2001224193 - 2⁴ = 2001224177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001224123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333537363 + ... + 333537368.

It is an arithmetic number, because the mean of its divisors is an integer number (667074732).

Almost surely, 2^2001224193 is an apocalyptic number.

It is an amenable number.

2001224193 is a deficient number, since it is larger than the sum of its proper divisors (667074735).

2001224193 is an equidigital number, since it uses as much as digits as its factorization.

2001224193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667074734.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2001224193 is about 44735.0443500395. The cubic root of 2001224193 is about 1260.1780618849.

Adding to 2001224193 its reverse (3914221002), we get a palindrome (5915445195).

The spelling of 2001224193 in words is "two billion, one million, two hundred twenty-four thousand, one hundred ninety-three".