21122202201169 has 2 divisors, whose sum is σ = 21122202201170. Its totient is φ = 21122202201168.

The previous prime is 21122202201077. The next prime is 21122202201187. The reversal of 21122202201169 is 96110220222112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10616746972225 + 10505455228944 = 3258335^2 + 3241212^2 .

It is a cyclic number.

It is not a de Polignac number, because 21122202201169 - 2¹³ = 21122202192977 is a prime.

It is a super-2 number, since 2×21122202201169² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21122202201169.

It is not a weakly prime, because it can be changed into another prime (21122202202169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561101100584 + 10561101100585.

It is an arithmetic number, because the mean of its divisors is an integer number (10561101100585).

Almost surely, 2^{21122202201169} is an apocalyptic number.

It is an amenable number.

21122202201169 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122202201169 is an equidigital number, since it uses as much as digits as its factorization.

21122202201169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 21122202201169 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred two million, two hundred one thousand, one hundred sixty-nine".