1201220000117 has 2 divisors, whose sum is σ = 1201220000118. Its totient is φ = 1201220000116.

The previous prime is 1201220000107. The next prime is 1201220000171. The reversal of 1201220000117 is 7110000221021.

Together with next prime (1201220000171) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 905312287441 + 295907712676 = 951479^2 + 543974^2 .

It is an emirp because it is prime and its reverse (7110000221021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201220000117 - 2⁶ = 1201220000053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201220000095 and 1201220000104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201220000107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600610000058 + 600610000059.

It is an arithmetic number, because the mean of its divisors is an integer number (600610000059).

Almost surely, 2^{1201220000117} is an apocalyptic number.

It is an amenable number.

1201220000117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201220000117 is an equidigital number, since it uses as much as digits as its factorization.

1201220000117 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 17.

Adding to 1201220000117 its reverse (7110000221021), we get a palindrome (8311220221138).

The spelling of 1201220000117 in words is "one trillion, two hundred one billion, two hundred twenty million, one hundred seventeen", and thus it is an aban number.