222211203217 has 2 divisors, whose sum is σ = 222211203218. Its totient is φ = 222211203216.

The previous prime is 222211203211. The next prime is 222211203229. The reversal of 222211203217 is 712302112222.

222211203217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179609830416 + 42601372801 = 423804^2 + 206401^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211203217 - 2³ = 222211203209 is a prime.

It is a super-2 number, since 2×222211203217² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222211203191 and 222211203200.

It is not a weakly prime, because it can be changed into another prime (222211203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105601608 + 111105601609.

It is an arithmetic number, because the mean of its divisors is an integer number (111105601609).

Almost surely, 2^222211203217 is an apocalyptic number.

It is an amenable number.

222211203217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211203217 is an equidigital number, since it uses as much as digits as its factorization.

222211203217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 222211203217 its reverse (712302112222), we get a palindrome (934513315439).

The spelling of 222211203217 in words is "two hundred twenty-two billion, two hundred eleven million, two hundred three thousand, two hundred seventeen".