122100022217 has 2 divisors, whose sum is σ = 122100022218. Its totient is φ = 122100022216.

The previous prime is 122100022189. The next prime is 122100022223. The reversal of 122100022217 is 712220001221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72988586896 + 49111435321 = 270164^2 + 221611^2 .

It is a cyclic number.

It is not a de Polignac number, because 122100022217 - 2²² = 122095827913 is a prime.

It is not a weakly prime, because it can be changed into another prime (122100012217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050011108 + 61050011109.

It is an arithmetic number, because the mean of its divisors is an integer number (61050011109).

Almost surely, 2^122100022217 is an apocalyptic number.

It is an amenable number.

122100022217 is a deficient number, since it is larger than the sum of its proper divisors (1).

122100022217 is an equidigital number, since it uses as much as digits as its factorization.

122100022217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 122100022217 its reverse (712220001221), we get a palindrome (834320023438).

The spelling of 122100022217 in words is "one hundred twenty-two billion, one hundred million, twenty-two thousand, two hundred seventeen".