22211010212173 has 2 divisors, whose sum is σ = 22211010212174. Its totient is φ = 22211010212172.

The previous prime is 22211010212029. The next prime is 22211010212189. The reversal of 22211010212173 is 37121201011222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11968430849764 + 10242579362409 = 3459542^2 + 3200403^2 .

It is a cyclic number.

It is not a de Polignac number, because 22211010212173 - 2⁹ = 22211010211661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22211010212873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105505106086 + 11105505106087.

It is an arithmetic number, because the mean of its divisors is an integer number (11105505106087).

Almost surely, 2^{22211010212173} is an apocalyptic number.

It is an amenable number.

22211010212173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211010212173 is an equidigital number, since it uses as much as digits as its factorization.

22211010212173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 22211010212173 its reverse (37121201011222), we get a palindrome (59332211223395).

The spelling of 22211010212173 in words is "twenty-two trillion, two hundred eleven billion, ten million, two hundred twelve thousand, one hundred seventy-three".