122210112217 has 2 divisors, whose sum is σ = 122210112218. Its totient is φ = 122210112216.

The previous prime is 122210112209. The next prime is 122210112293. The reversal of 122210112217 is 712211012221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73161594256 + 49048517961 = 270484^2 + 221469^2 .

It is a cyclic number.

It is not a de Polignac number, because 122210112217 - 2³ = 122210112209 is a prime.

It is not a weakly prime, because it can be changed into another prime (122210112517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61105056108 + 61105056109.

It is an arithmetic number, because the mean of its divisors is an integer number (61105056109).

Almost surely, 2^122210112217 is an apocalyptic number.

It is an amenable number.

122210112217 is a deficient number, since it is larger than the sum of its proper divisors (1).

122210112217 is an equidigital number, since it uses as much as digits as its factorization.

122210112217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 122210112217 its reverse (712211012221), we get a palindrome (834421124438).

The spelling of 122210112217 in words is "one hundred twenty-two billion, two hundred ten million, one hundred twelve thousand, two hundred seventeen".