2001223297 has 2 divisors, whose sum is σ = 2001223298. Its totient is φ = 2001223296.

The previous prime is 2001223283. The next prime is 2001223351. The reversal of 2001223297 is 7923221002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1169708401 + 831514896 = 34201^2 + 28836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001223297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001223207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000611648 + 1000611649.

It is an arithmetic number, because the mean of its divisors is an integer number (1000611649).

Almost surely, 2^2001223297 is an apocalyptic number.

It is an amenable number.

2001223297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001223297 is an equidigital number, since it uses as much as digits as its factorization.

2001223297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2001223297 is about 44735.0343355183. The cubic root of 2001223297 is about 1260.1778738134.

Adding to 2001223297 its reverse (7923221002), we get a palindrome (9924444299).

The spelling of 2001223297 in words is "two billion, one million, two hundred twenty-three thousand, two hundred ninety-seven".