2102210129 has 2 divisors, whose sum is σ = 2102210130. Its totient is φ = 2102210128.

The previous prime is 2102210119. The next prime is 2102210137. The reversal of 2102210129 is 9210122012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084105104 + 18105025 = 45652^2 + 4255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102210129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102210129.

It is not a weakly prime, because it can be changed into another prime (2102210119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051105064 + 1051105065.

It is an arithmetic number, because the mean of its divisors is an integer number (1051105065).

Almost surely, 2^2102210129 is an apocalyptic number.

It is an amenable number.

2102210129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102210129 is an equidigital number, since it uses as much as digits as its factorization.

2102210129 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 20.

The square root of 2102210129 is about 45849.8650924951. The cubic root of 2102210129 is about 1281.0282527398.

The spelling of 2102210129 in words is "two billion, one hundred two million, two hundred ten thousand, one hundred twenty-nine".