1122122212217 has 2 divisors, whose sum is σ = 1122122212218. Its totient is φ = 1122122212216.

The previous prime is 1122122212207. The next prime is 1122122212229. The reversal of 1122122212217 is 7122122212211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972282769936 + 149839442281 = 986044^2 + 387091^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122122212217 - 2⁸ = 1122122211961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122122212207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561061106108 + 561061106109.

It is an arithmetic number, because the mean of its divisors is an integer number (561061106109).

Almost surely, 2^{1122122212217} is an apocalyptic number.

It is an amenable number.

1122122212217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122122212217 is an equidigital number, since it uses as much as digits as its factorization.

1122122212217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 26.

Adding to 1122122212217 its reverse (7122122212211), we get a palindrome (8244244424428).

The spelling of 1122122212217 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred seventeen".