1012222100173 has 2 divisors, whose sum is σ = 1012222100174. Its totient is φ = 1012222100172.

The previous prime is 1012222100161. The next prime is 1012222100231. The reversal of 1012222100173 is 3710012222101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682834490244 + 329387609929 = 826338^2 + 573923^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012222100173 - 2²¹ = 1012220003021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012222100273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506111050086 + 506111050087.

It is an arithmetic number, because the mean of its divisors is an integer number (506111050087).

Almost surely, 2^{1012222100173} is an apocalyptic number.

It is an amenable number.

1012222100173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012222100173 is an equidigital number, since it uses as much as digits as its factorization.

1012222100173 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 22.

Adding to 1012222100173 its reverse (3710012222101), we get a palindrome (4722234322274).

The spelling of 1012222100173 in words is "one trillion, twelve billion, two hundred twenty-two million, one hundred thousand, one hundred seventy-three".