220311322002217 has 2 divisors, whose sum is σ = 220311322002218. Its totient is φ = 220311322002216.

The previous prime is 220311322002209. The next prime is 220311322002229. The reversal of 220311322002217 is 712200223113022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155329085945881 + 64982236056336 = 12463109^2 + 8061156^2 .

It is a cyclic number.

It is not a de Polignac number, because 220311322002217 - 2³ = 220311322002209 is a prime.

It is not a weakly prime, because it can be changed into another prime (220311322012217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110155661001108 + 110155661001109.

It is an arithmetic number, because the mean of its divisors is an integer number (110155661001109).

Almost surely, 2^{220311322002217} is an apocalyptic number.

It is an amenable number.

220311322002217 is a deficient number, since it is larger than the sum of its proper divisors (1).

220311322002217 is an equidigital number, since it uses as much as digits as its factorization.

220311322002217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 220311322002217 its reverse (712200223113022), we get a palindrome (932511545115239).

The spelling of 220311322002217 in words is "two hundred twenty trillion, three hundred eleven billion, three hundred twenty-two million, two thousand, two hundred seventeen".