1210200212129 has 2 divisors, whose sum is σ = 1210200212130. Its totient is φ = 1210200212128.

The previous prime is 1210200212087. The next prime is 1210200212147. The reversal of 1210200212129 is 9212120020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1169134000225 + 41066211904 = 1081265^2 + 202648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210200212129 - 2⁸ = 1210200211873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1210200212329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100106064 + 605100106065.

It is an arithmetic number, because the mean of its divisors is an integer number (605100106065).

Almost surely, 2^{1210200212129} is an apocalyptic number.

It is an amenable number.

1210200212129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210200212129 is an equidigital number, since it uses as much as digits as its factorization.

1210200212129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1210200212129 in words is "one trillion, two hundred ten billion, two hundred million, two hundred twelve thousand, one hundred twenty-nine".