22000020002173 has 2 divisors, whose sum is σ = 22000020002174. Its totient is φ = 22000020002172.

The previous prime is 22000020002057. The next prime is 22000020002179. The reversal of 22000020002173 is 37120002000022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12145211060004 + 9854808942169 = 3484998^2 + 3139237^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000020002173 - 2²⁵ = 21999986447741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22000020002173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000020002179) 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, 11000010001086 + 11000010001087.

It is an arithmetic number, because the mean of its divisors is an integer number (11000010001087).

Almost surely, 2^{22000020002173} is an apocalyptic number.

It is an amenable number.

22000020002173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000020002173 is an equidigital number, since it uses as much as digits as its factorization.

22000020002173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

Adding to 22000020002173 its reverse (37120002000022), we get a palindrome (59120022002195).

The spelling of 22000020002173 in words is "twenty-two trillion, twenty million, two thousand, one hundred seventy-three".