1002120121169 has 2 divisors, whose sum is σ = 1002120121170. Its totient is φ = 1002120121168.

The previous prime is 1002120121159. The next prime is 1002120121231. The reversal of 1002120121169 is 9611210212001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 873140736400 + 128979384769 = 934420^2 + 359137^2 .

It is an emirp because it is prime and its reverse (9611210212001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002120121169 - 2²⁴ = 1002103343953 is a prime.

It is a super-3 number, since 3×1002120121169³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1002120121139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501060060584 + 501060060585.

It is an arithmetic number, because the mean of its divisors is an integer number (501060060585).

Almost surely, 2^{1002120121169} is an apocalyptic number.

It is an amenable number.

1002120121169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002120121169 is an equidigital number, since it uses as much as digits as its factorization.

1002120121169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1002120121169 in words is "one trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, one hundred sixty-nine".