22142042177 has 2 divisors, whose sum is σ = 22142042178. Its totient is φ = 22142042176.

The previous prime is 22142042171. The next prime is 22142042233. The reversal of 22142042177 is 77124024122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11941244176 + 10200798001 = 109276^2 + 100999^2 .

It is a cyclic number.

It is not a de Polignac number, because 22142042177 - 2⁴ = 22142042161 is a prime.

It is not a weakly prime, because it can be changed into another prime (22142042171) 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, 11071021088 + 11071021089.

It is an arithmetic number, because the mean of its divisors is an integer number (11071021089).

Almost surely, 2^22142042177 is an apocalyptic number.

It is an amenable number.

22142042177 is a deficient number, since it is larger than the sum of its proper divisors (1).

22142042177 is an equidigital number, since it uses as much as digits as its factorization.

22142042177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 32.

Adding to 22142042177 its reverse (77124024122), we get a palindrome (99266066299).

The spelling of 22142042177 in words is "twenty-two billion, one hundred forty-two million, forty-two thousand, one hundred seventy-seven".