22017820169 has 2 divisors, whose sum is σ = 22017820170. Its totient is φ = 22017820168.

The previous prime is 22017820129. The next prime is 22017820207. The reversal of 22017820169 is 96102871022.

It is an a-pointer prime, because the next prime (22017820207) can be obtained adding 22017820169 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21458734144 + 559086025 = 146488^2 + 23645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22017820169 is a prime.

It is a super-2 number, since 2×22017820169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22017820129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11008910084 + 11008910085.

It is an arithmetic number, because the mean of its divisors is an integer number (11008910085).

Almost surely, 2^22017820169 is an apocalyptic number.

It is an amenable number.

22017820169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22017820169 is an equidigital number, since it uses as much as digits as its factorization.

22017820169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 22017820169 in words is "twenty-two billion, seventeen million, eight hundred twenty thousand, one hundred sixty-nine".