22222222166727 has 12 divisors (see below), whose sum is σ = 35016834929544. Its totient is φ = 13468013434320.

The previous prime is 22222222166717. The next prime is 22222222166743. The reversal of 22222222166727 is 72766122222222.

22222222166727 is a `hidden beast` number, since 22 + 222 + 222 + 166 + 7 + 27 = 666.

It is not a de Polignac number, because 22222222166727 - 2¹¹ = 22222222164679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222222166717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112233445188 + ... + 112233445385.

It is an arithmetic number, because the mean of its divisors is an integer number (2918069577462).

Almost surely, 2^{22222222166727} is an apocalyptic number.

22222222166727 is a deficient number, since it is larger than the sum of its proper divisors (12794612762817).

22222222166727 is a wasteful number, since it uses less digits than its factorization.

22222222166727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224466890590 (or 224466890587 counting only the distinct ones).

The product of its digits is 903168, while the sum is 45.

Adding to 22222222166727 its reverse (72766122222222), we get a palindrome (94988344388949).

The spelling of 22222222166727 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred sixty-six thousand, seven hundred twenty-seven".