210102121129 has 2 divisors, whose sum is σ = 210102121130. Its totient is φ = 210102121128.

The previous prime is 210102121081. The next prime is 210102121169. The reversal of 210102121129 is 921121201012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144895945104 + 65206176025 = 380652^2 + 255355^2 .

It is a cyclic number.

It is not a de Polignac number, because 210102121129 - 2¹³ = 210102112937 is a prime.

It is not a weakly prime, because it can be changed into another prime (210102121169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051060564 + 105051060565.

It is an arithmetic number, because the mean of its divisors is an integer number (105051060565).

Almost surely, 2^210102121129 is an apocalyptic number.

It is an amenable number.

210102121129 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102121129 is an equidigital number, since it uses as much as digits as its factorization.

210102121129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 210102121129 in words is "two hundred ten billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty-nine".