222211120217 has 2 divisors, whose sum is σ = 222211120218. Its totient is φ = 222211120216.

The previous prime is 222211120193. The next prime is 222211120231. The reversal of 222211120217 is 712021112222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178425139216 + 43785981001 = 422404^2 + 209251^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211120217 - 2²⁴ = 222194343001 is a prime.

It is a super-2 number, since 2×222211120217² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222211120192 and 222211120201.

It is not a weakly prime, because it can be changed into another prime (222211125217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105560108 + 111105560109.

It is an arithmetic number, because the mean of its divisors is an integer number (111105560109).

Almost surely, 2^222211120217 is an apocalyptic number.

It is an amenable number.

222211120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

222211120217 is an equidigital number, since it uses as much as digits as its factorization.

222211120217 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 23.

Adding to 222211120217 its reverse (712021112222), we get a palindrome (934232232439).

The spelling of 222211120217 in words is "two hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, two hundred seventeen".