22222220010217 has 2 divisors, whose sum is σ = 22222220010218. Its totient is φ = 22222220010216.

The previous prime is 22222220010203. The next prime is 22222220010247. The reversal of 22222220010217 is 71201002222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21873477794281 + 348742215936 = 4676909^2 + 590544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22222220010217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22222220010191 and 22222220010200.

It is not a weakly prime, because it can be changed into another prime (22222220010247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111110005108 + 11111110005109.

It is an arithmetic number, because the mean of its divisors is an integer number (11111110005109).

Almost surely, 2^{22222220010217} is an apocalyptic number.

It is an amenable number.

22222220010217 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222220010217 is an equidigital number, since it uses as much as digits as its factorization.

22222220010217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 22222220010217 its reverse (71201002222222), we get a palindrome (93423222232439).

The spelling of 22222220010217 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty million, ten thousand, two hundred seventeen".