1220103210217 has 2 divisors, whose sum is σ = 1220103210218. Its totient is φ = 1220103210216.

The previous prime is 1220103210199. The next prime is 1220103210229. The reversal of 1220103210217 is 7120123010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 997239907161 + 222863303056 = 998619^2 + 472084^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220103210217 - 2²³ = 1220094821609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220103210817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610051605108 + 610051605109.

It is an arithmetic number, because the mean of its divisors is an integer number (610051605109).

Almost surely, 2^{1220103210217} is an apocalyptic number.

It is an amenable number.

1220103210217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220103210217 is an equidigital number, since it uses as much as digits as its factorization.

1220103210217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 1220103210217 its reverse (7120123010221), we get a palindrome (8340226220438).

The spelling of 1220103210217 in words is "one trillion, two hundred twenty billion, one hundred three million, two hundred ten thousand, two hundred seventeen".