2001223244 has 6 divisors (see below), whose sum is σ = 3502140684. Its totient is φ = 1000611620.

The previous prime is 2001223229. The next prime is 2001223267. The reversal of 2001223244 is 4423221002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250152902 + ... + 250152909.

It is an arithmetic number, because the mean of its divisors is an integer number (583690114).

Almost surely, 2^2001223244 is an apocalyptic number.

It is an amenable number.

2001223244 is a deficient number, since it is larger than the sum of its proper divisors (1500917440).

2001223244 is a wasteful number, since it uses less digits than its factorization.

2001223244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500305815 (or 500305813 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2001223244 is about 44735.0337431414. The cubic root of 2001223244 is about 1260.1778626887.

Adding to 2001223244 its reverse (4423221002), we get a palindrome (6424444246).

The spelling of 2001223244 in words is "two billion, one million, two hundred twenty-three thousand, two hundred forty-four".