1210110110129 has 2 divisors, whose sum is σ = 1210110110130. Its totient is φ = 1210110110128.

The previous prime is 1210110110117. The next prime is 1210110110149. The reversal of 1210110110129 is 9210110110121.

It is an a-pointer prime, because the next prime (1210110110149) can be obtained adding 1210110110129 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849687586225 + 360422523904 = 921785^2 + 600352^2 .

It is an emirp because it is prime and its reverse (9210110110121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210110110129 - 2³⁶ = 1141390633393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210110110129.

It is not a weakly prime, because it can be changed into another prime (1210110110149) 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, 605055055064 + 605055055065.

It is an arithmetic number, because the mean of its divisors is an integer number (605055055065).

Almost surely, 2^{1210110110129} is an apocalyptic number.

It is an amenable number.

1210110110129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210110110129 is an equidigital number, since it uses as much as digits as its factorization.

1210110110129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 1210110110129 in words is "one trillion, two hundred ten billion, one hundred ten million, one hundred ten thousand, one hundred twenty-nine".