1210000100117 has 2 divisors, whose sum is σ = 1210000100118. Its totient is φ = 1210000100116.

The previous prime is 1210000100063. The next prime is 1210000100123. The reversal of 1210000100117 is 7110010000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125485470321 + 84514629796 = 1060889^2 + 290714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210000100117 - 2¹⁸ = 1209999837973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210000100167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605000050058 + 605000050059.

It is an arithmetic number, because the mean of its divisors is an integer number (605000050059).

Almost surely, 2^{1210000100117} is an apocalyptic number.

It is an amenable number.

1210000100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210000100117 is an equidigital number, since it uses as much as digits as its factorization.

1210000100117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

Adding to 1210000100117 its reverse (7110010000121), we get a palindrome (8320010100238).

The spelling of 1210000100117 in words is "one trillion, two hundred ten billion, one hundred thousand, one hundred seventeen".