211012302169 has 2 divisors, whose sum is σ = 211012302170. Its totient is φ = 211012302168.

The previous prime is 211012302097. The next prime is 211012302181. The reversal of 211012302169 is 961203210112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210938118400 + 74183769 = 459280^2 + 8613^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012302169 - 2⁹ = 211012301657 is a prime.

It is a super-2 number, since 2×211012302169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211012305169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506151084 + 105506151085.

It is an arithmetic number, because the mean of its divisors is an integer number (105506151085).

Almost surely, 2^211012302169 is an apocalyptic number.

It is an amenable number.

211012302169 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012302169 is an equidigital number, since it uses as much as digits as its factorization.

211012302169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 211012302169 in words is "two hundred eleven billion, twelve million, three hundred two thousand, one hundred sixty-nine".