1210210101173 has 2 divisors, whose sum is σ = 1210210101174. Its totient is φ = 1210210101172.

The previous prime is 1210210101161. The next prime is 1210210101307. The reversal of 1210210101173 is 3711010120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944797608049 + 265412493124 = 972007^2 + 515182^2 .

It is an emirp because it is prime and its reverse (3711010120121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210210101173 - 2¹⁶ = 1210210035637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210210101073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605105050586 + 605105050587.

It is an arithmetic number, because the mean of its divisors is an integer number (605105050587).

Almost surely, 2^{1210210101173} is an apocalyptic number.

It is an amenable number.

1210210101173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210210101173 is an equidigital number, since it uses as much as digits as its factorization.

1210210101173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 1210210101173 its reverse (3711010120121), we get a palindrome (4921220221294).

The spelling of 1210210101173 in words is "one trillion, two hundred ten billion, two hundred ten million, one hundred one thousand, one hundred seventy-three".