221022001110217 has 2 divisors, whose sum is σ = 221022001110218. Its totient is φ = 221022001110216.

The previous prime is 221022001110101. The next prime is 221022001110277. The reversal of 221022001110217 is 712011100220122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216743643950656 + 4278357159561 = 14722216^2 + 2068419^2 .

It is a cyclic number.

It is not a de Polignac number, because 221022001110217 - 2¹⁹ = 221022000585929 is a prime.

It is not a weakly prime, because it can be changed into another prime (221022001110277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110511000555108 + 110511000555109.

It is an arithmetic number, because the mean of its divisors is an integer number (110511000555109).

Almost surely, 2^{221022001110217} is an apocalyptic number.

It is an amenable number.

221022001110217 is a deficient number, since it is larger than the sum of its proper divisors (1).

221022001110217 is an equidigital number, since it uses as much as digits as its factorization.

221022001110217 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 22.

Adding to 221022001110217 its reverse (712011100220122), we get a palindrome (933033101330339).

The spelling of 221022001110217 in words is "two hundred twenty-one trillion, twenty-two billion, one million, one hundred ten thousand, two hundred seventeen".