2120211169 has 2 divisors, whose sum is σ = 2120211170. Its totient is φ = 2120211168.

The previous prime is 2120211161. The next prime is 2120211239. The reversal of 2120211169 is 9611120212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2041232400 + 78978769 = 45180^2 + 8887^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120211169 - 2³ = 2120211161 is a prime.

It is a super-2 number, since 2×2120211169² = 8990590802304693122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2120211161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105584 + 1060105585.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105585).

Almost surely, 2^2120211169 is an apocalyptic number.

It is an amenable number.

2120211169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120211169 is an equidigital number, since it uses as much as digits as its factorization.

2120211169 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 square root of 2120211169 is about 46045.7508245875. The cubic root of 2120211169 is about 1284.6743095012.

The spelling of 2120211169 in words is "two billion, one hundred twenty million, two hundred eleven thousand, one hundred sixty-nine".