2012112232321 has 2 divisors, whose sum is σ = 2012112232322. Its totient is φ = 2012112232320.

The previous prime is 2012112232313. The next prime is 2012112232363. The reversal of 2012112232321 is 1232322112102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1887051690000 + 125060542321 = 1373700^2 + 353639^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012112232321 - 2³ = 2012112232313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012112232292 and 2012112232301.

It is not a weakly prime, because it can be changed into another prime (2012112232621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006056116160 + 1006056116161.

It is an arithmetic number, because the mean of its divisors is an integer number (1006056116161).

Almost surely, 2^{2012112232321} is an apocalyptic number.

It is an amenable number.

2012112232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012112232321 is an equidigital number, since it uses as much as digits as its factorization.

2012112232321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2012112232321 its reverse (1232322112102), we get a palindrome (3244434344423).

The spelling of 2012112232321 in words is "two trillion, twelve billion, one hundred twelve million, two hundred thirty-two thousand, three hundred twenty-one".