2012200321 has 2 divisors, whose sum is σ = 2012200322. Its totient is φ = 2012200320.

The previous prime is 2012200313. The next prime is 2012200403. The reversal of 2012200321 is 1230022102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1862871921 + 149328400 = 43161^2 + 12220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012200321 - 2³ = 2012200313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012203321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006100160 + 1006100161.

It is an arithmetic number, because the mean of its divisors is an integer number (1006100161).

Almost surely, 2^2012200321 is an apocalyptic number.

It is an amenable number.

2012200321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012200321 is an equidigital number, since it uses as much as digits as its factorization.

2012200321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2012200321 is about 44857.5558964150. Note that the first 3 decimals coincide. The cubic root of 2012200321 is about 1262.4777650040.

Adding to 2012200321 its reverse (1230022102), we get a palindrome (3242222423).

The spelling of 2012200321 in words is "two billion, twelve million, two hundred thousand, three hundred twenty-one".