12220101217 has 2 divisors, whose sum is σ = 12220101218. Its totient is φ = 12220101216.

The previous prime is 12220101197. The next prime is 12220101221. The reversal of 12220101217 is 71210102221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8828669521 + 3391431696 = 93961^2 + 58236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220101217 is a prime.

It is a super-3 number, since 3×12220101217³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220101194 and 12220101203.

It is not a weakly prime, because it can be changed into another prime (12220101247) 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, 6110050608 + 6110050609.

It is an arithmetic number, because the mean of its divisors is an integer number (6110050609).

Almost surely, 2^12220101217 is an apocalyptic number.

It is an amenable number.

12220101217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220101217 is an equidigital number, since it uses as much as digits as its factorization.

12220101217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 12220101217 its reverse (71210102221), we get a palindrome (83430203438).

The spelling of 12220101217 in words is "twelve billion, two hundred twenty million, one hundred one thousand, two hundred seventeen".