222101220217 has 2 divisors, whose sum is σ = 222101220218. Its totient is φ = 222101220216.

The previous prime is 222101220191. The next prime is 222101220223. The reversal of 222101220217 is 712022101222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186326902336 + 35774317881 = 431656^2 + 189141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222101220217 is a prime.

It is not a weakly prime, because it can be changed into another prime (222101221217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050610108 + 111050610109.

It is an arithmetic number, because the mean of its divisors is an integer number (111050610109).

Almost surely, 2^222101220217 is an apocalyptic number.

It is an amenable number.

222101220217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222101220217 is an equidigital number, since it uses as much as digits as its factorization.

222101220217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 222101220217 its reverse (712022101222), we get a palindrome (934123321439).

The spelling of 222101220217 in words is "two hundred twenty-two billion, one hundred one million, two hundred twenty thousand, two hundred seventeen".