2102202021169 has 2 divisors, whose sum is σ = 2102202021170. Its totient is φ = 2102202021168.

The previous prime is 2102202021167. The next prime is 2102202021203. The reversal of 2102202021169 is 9611202022012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1994486781169 + 107715240000 = 1412263^2 + 328200^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102202021169 - 2¹ = 2102202021167 is a prime.

It is a super-2 number, since 2×2102202021169² (a number of 25 digits) contains 22 as substring.

Together with 2102202021167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2102202021167) 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, 1051101010584 + 1051101010585.

It is an arithmetic number, because the mean of its divisors is an integer number (1051101010585).

Almost surely, 2^{2102202021169} is an apocalyptic number.

It is an amenable number.

2102202021169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102202021169 is an equidigital number, since it uses as much as digits as its factorization.

2102202021169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 2102202021169 in words is "two trillion, one hundred two billion, two hundred two million, twenty-one thousand, one hundred sixty-nine".