11011222002173 has 2 divisors, whose sum is σ = 11011222002174. Its totient is φ = 11011222002172.

The previous prime is 11011222002167. The next prime is 11011222002217. The reversal of 11011222002173 is 37120022211011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10336822998649 + 674399003524 = 3215093^2 + 821218^2 .

It is an emirp because it is prime and its reverse (37120022211011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11011222002173 - 2²⁰ = 11011220953597 is a prime.

It is a super-2 number, since 2×11011222002173² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011222002073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505611001086 + 5505611001087.

It is an arithmetic number, because the mean of its divisors is an integer number (5505611001087).

Almost surely, 2^{11011222002173} is an apocalyptic number.

It is an amenable number.

11011222002173 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011222002173 is an equidigital number, since it uses as much as digits as its factorization.

11011222002173 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 23.

Adding to 11011222002173 its reverse (37120022211011), we get a palindrome (48131244213184).

The spelling of 11011222002173 in words is "eleven trillion, eleven billion, two hundred twenty-two million, two thousand, one hundred seventy-three".