2012220121297 has 2 divisors, whose sum is σ = 2012220121298. Its totient is φ = 2012220121296.

The previous prime is 2012220121183. The next prime is 2012220121309. The reversal of 2012220121297 is 7921210222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2010395037456 + 1825083841 = 1417884^2 + 42721^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012220121297 - 2³¹ = 2010072637649 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012229121297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006110060648 + 1006110060649.

It is an arithmetic number, because the mean of its divisors is an integer number (1006110060649).

Almost surely, 2^{2012220121297} is an apocalyptic number.

It is an amenable number.

2012220121297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012220121297 is an equidigital number, since it uses as much as digits as its factorization.

2012220121297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 2012220121297 its reverse (7921210222102), we get a palindrome (9933430343399).

The spelling of 2012220121297 in words is "two trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, two hundred ninety-seven".