2122012179173 has 2 divisors, whose sum is σ = 2122012179174. Its totient is φ = 2122012179172.

The previous prime is 2122012179169. The next prime is 2122012179179. The reversal of 2122012179173 is 3719712102212.

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., 2054228494564 + 67783684609 = 1433258^2 + 260353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122012179173 - 2² = 2122012179169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122012179179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061006089586 + 1061006089587.

It is an arithmetic number, because the mean of its divisors is an integer number (1061006089587).

Almost surely, 2^{2122012179173} is an apocalyptic number.

It is an amenable number.

2122012179173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122012179173 is an equidigital number, since it uses as much as digits as its factorization.

2122012179173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 2122012179173 in words is "two trillion, one hundred twenty-two billion, twelve million, one hundred seventy-nine thousand, one hundred seventy-three".