212000122129 has 2 divisors, whose sum is σ = 212000122130. Its totient is φ = 212000122128.

The previous prime is 212000122091. The next prime is 212000122193. The reversal of 212000122129 is 921221000212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210515792400 + 1484329729 = 458820^2 + 38527^2 .

It is a cyclic number.

It is not a de Polignac number, because 212000122129 - 2¹⁹ = 211999597841 is a prime.

It is not a weakly prime, because it can be changed into another prime (212000102129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000061064 + 106000061065.

It is an arithmetic number, because the mean of its divisors is an integer number (106000061065).

Almost surely, 2^212000122129 is an apocalyptic number.

It is an amenable number.

212000122129 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000122129 is an equidigital number, since it uses as much as digits as its factorization.

212000122129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 212000122129 in words is "two hundred twelve billion, one hundred twenty-two thousand, one hundred twenty-nine".