22012111169 has 2 divisors, whose sum is σ = 22012111170. Its totient is φ = 22012111168.

The previous prime is 22012111159. The next prime is 22012111217. The reversal of 22012111169 is 96111121022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13642240000 + 8369871169 = 116800^2 + 91487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012111169 is a prime.

It is a super-2 number, since 2×22012111169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22012111129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006055584 + 11006055585.

It is an arithmetic number, because the mean of its divisors is an integer number (11006055585).

Almost surely, 2^22012111169 is an apocalyptic number.

It is an amenable number.

22012111169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012111169 is an equidigital number, since it uses as much as digits as its factorization.

22012111169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 22012111169 in words is "twenty-two billion, twelve million, one hundred eleven thousand, one hundred sixty-nine".