22231420022173 has 2 divisors, whose sum is σ = 22231420022174. Its totient is φ = 22231420022172.

The previous prime is 22231420022137. The next prime is 22231420022407. The reversal of 22231420022173 is 37122002413222.

It is a happy number.

Together with previous prime (22231420022137) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22145287750884 + 86132271289 = 4705878^2 + 293483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22231420022173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22231420023173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11115710011086 + 11115710011087.

It is an arithmetic number, because the mean of its divisors is an integer number (11115710011087).

Almost surely, 2^{22231420022173} is an apocalyptic number.

It is an amenable number.

22231420022173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22231420022173 is an equidigital number, since it uses as much as digits as its factorization.

22231420022173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 22231420022173 its reverse (37122002413222), we get a palindrome (59353422435395).

The spelling of 22231420022173 in words is "twenty-two trillion, two hundred thirty-one billion, four hundred twenty million, twenty-two thousand, one hundred seventy-three".