210120012202129 has 2 divisors, whose sum is σ = 210120012202130. Its totient is φ = 210120012202128.

The previous prime is 210120012202091. The next prime is 210120012202181. The reversal of 210120012202129 is 921202210021012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204769002301504 + 5351009900625 = 14309752^2 + 2313225^2 .

It is a cyclic number.

It is not a de Polignac number, because 210120012202129 - 2¹⁹ = 210120011677841 is a prime.

It is not a weakly prime, because it can be changed into another prime (210120012200129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060006101064 + 105060006101065.

It is an arithmetic number, because the mean of its divisors is an integer number (105060006101065).

Almost surely, 2^{210120012202129} is an apocalyptic number.

It is an amenable number.

210120012202129 is a deficient number, since it is larger than the sum of its proper divisors (1).

210120012202129 is an equidigital number, since it uses as much as digits as its factorization.

210120012202129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 210120012202129 in words is "two hundred ten trillion, one hundred twenty billion, twelve million, two hundred two thousand, one hundred twenty-nine".