2041221002173 has 2 divisors, whose sum is σ = 2041221002174. Its totient is φ = 2041221002172.

The previous prime is 2041221002167. The next prime is 2041221002309. The reversal of 2041221002173 is 3712001221402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1226817633924 + 814403368249 = 1107618^2 + 902443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041221002173 - 2⁹ = 2041221001661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2041221002123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020610501086 + 1020610501087.

It is an arithmetic number, because the mean of its divisors is an integer number (1020610501087).

Almost surely, 2^{2041221002173} is an apocalyptic number.

It is an amenable number.

2041221002173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2041221002173 is an equidigital number, since it uses as much as digits as its factorization.

2041221002173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 2041221002173 its reverse (3712001221402), we get a palindrome (5753222223575).

The spelling of 2041221002173 in words is "two trillion, forty-one billion, two hundred twenty-one million, two thousand, one hundred seventy-three".