22143112427 has 2 divisors, whose sum is σ = 22143112428. Its totient is φ = 22143112426.

The previous prime is 22143112417. The next prime is 22143112451. The reversal of 22143112427 is 72421134122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22143112427 - 2¹⁴ = 22143096043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22143112427.

It is not a weakly prime, because it can be changed into another prime (22143112417) 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 as a sum of consecutive naturals, namely, 11071556213 + 11071556214.

It is an arithmetic number, because the mean of its divisors is an integer number (11071556214).

Almost surely, 2^22143112427 is an apocalyptic number.

22143112427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143112427 is an equidigital number, since it uses as much as digits as its factorization.

22143112427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

Adding to 22143112427 its reverse (72421134122), we get a palindrome (94564246549).

The spelling of 22143112427 in words is "twenty-two billion, one hundred forty-three million, one hundred twelve thousand, four hundred twenty-seven".