10212122142109 has 2 divisors, whose sum is σ = 10212122142110. Its totient is φ = 10212122142108.

The previous prime is 10212122142107. The next prime is 10212122142301. The reversal of 10212122142109 is 90124122121201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9914500612900 + 297621529209 = 3148730^2 + 545547^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212122142109 - 2¹ = 10212122142107 is a prime.

Together with 10212122142107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212122142107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106061071054 + 5106061071055.

It is an arithmetic number, because the mean of its divisors is an integer number (5106061071055).

Almost surely, 2^{10212122142109} is an apocalyptic number.

It is an amenable number.

10212122142109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212122142109 is an equidigital number, since it uses as much as digits as its factorization.

10212122142109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 10212122142109 in words is "ten trillion, two hundred twelve billion, one hundred twenty-two million, one hundred forty-two thousand, one hundred nine".