13220101217 has 2 divisors, whose sum is σ = 13220101218. Its totient is φ = 13220101216.

The previous prime is 13220101171. The next prime is 13220101277. The reversal of 13220101217 is 71210102231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6736469776 + 6483631441 = 82076^2 + 80521^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220101217 - 2⁸ = 13220100961 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220101277) 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, 6610050608 + 6610050609.

It is an arithmetic number, because the mean of its divisors is an integer number (6610050609).

Almost surely, 2^13220101217 is an apocalyptic number.

It is an amenable number.

13220101217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220101217 is an equidigital number, since it uses as much as digits as its factorization.

13220101217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 13220101217 its reverse (71210102231), we get a palindrome (84430203448).

The spelling of 13220101217 in words is "thirteen billion, two hundred twenty million, one hundred one thousand, two hundred seventeen".