1220012110117 has 2 divisors, whose sum is σ = 1220012110118. Its totient is φ = 1220012110116.

The previous prime is 1220012110073. The next prime is 1220012110151. The reversal of 1220012110117 is 7110112100221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982132532676 + 237879577441 = 991026^2 + 487729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220012110117 - 2⁷ = 1220012109989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220012110094 and 1220012110103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220012110157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610006055058 + 610006055059.

It is an arithmetic number, because the mean of its divisors is an integer number (610006055059).

Almost surely, 2^{1220012110117} is an apocalyptic number.

It is an amenable number.

1220012110117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220012110117 is an equidigital number, since it uses as much as digits as its factorization.

1220012110117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 1220012110117 its reverse (7110112100221), we get a palindrome (8330124210338).

The spelling of 1220012110117 in words is "one trillion, two hundred twenty billion, twelve million, one hundred ten thousand, one hundred seventeen".