2012022100217 has 2 divisors, whose sum is σ = 2012022100218. Its totient is φ = 2012022100216.

The previous prime is 2012022100189. The next prime is 2012022100243. The reversal of 2012022100217 is 7120012202102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1988618913856 + 23403186361 = 1410184^2 + 152981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012022100217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012022100117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006011050108 + 1006011050109.

It is an arithmetic number, because the mean of its divisors is an integer number (1006011050109).

Almost surely, 2^{2012022100217} is an apocalyptic number.

It is an amenable number.

2012022100217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012022100217 is an equidigital number, since it uses as much as digits as its factorization.

2012022100217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 2012022100217 its reverse (7120012202102), we get a palindrome (9132034302319).

The spelling of 2012022100217 in words is "two trillion, twelve billion, twenty-two million, one hundred thousand, two hundred seventeen".