2000121210169 has 2 divisors, whose sum is σ = 2000121210170. Its totient is φ = 2000121210168.

The previous prime is 2000121210107. The next prime is 2000121210193. The reversal of 2000121210169 is 9610121210002.

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., 1203163284544 + 796957925625 = 1096888^2 + 892725^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000121210169 - 2²⁹ = 1999584339257 is a prime.

It is a super-2 number, since 2×2000121210169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2000121216169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000060605084 + 1000060605085.

It is an arithmetic number, because the mean of its divisors is an integer number (1000060605085).

Almost surely, 2^{2000121210169} is an apocalyptic number.

It is an amenable number.

2000121210169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000121210169 is an equidigital number, since it uses as much as digits as its factorization.

2000121210169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 2000121210169 in words is "two trillion, one hundred twenty-one million, two hundred ten thousand, one hundred sixty-nine".