2012021110217 has 2 divisors, whose sum is σ = 2012021110218. Its totient is φ = 2012021110216.

The previous prime is 2012021110193. The next prime is 2012021110219. The reversal of 2012021110217 is 7120111202102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1474696925641 + 537324184576 = 1214371^2 + 733024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012021110217 - 2⁶ = 2012021110153 is a prime.

Together with 2012021110219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2012021110219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006010555108 + 1006010555109.

It is an arithmetic number, because the mean of its divisors is an integer number (1006010555109).

Almost surely, 2^{2012021110217} is an apocalyptic number.

It is an amenable number.

2012021110217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012021110217 is an equidigital number, since it uses as much as digits as its factorization.

2012021110217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 2012021110217 its reverse (7120111202102), we get a palindrome (9132132312319).

The spelling of 2012021110217 in words is "two trillion, twelve billion, twenty-one million, one hundred ten thousand, two hundred seventeen".