202202202020173 has 2 divisors, whose sum is σ = 202202202020174. Its totient is φ = 202202202020172.

The previous prime is 202202202020153. The next prime is 202202202020179. The reversal of 202202202020173 is 371020202202202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184803442743049 + 17398759277124 = 13594243^2 + 4171182^2 .

It is a cyclic number.

It is not a de Polignac number, because 202202202020173 - 2¹³ = 202202202011981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202202202020179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101101101010086 + 101101101010087.

It is an arithmetic number, because the mean of its divisors is an integer number (101101101010087).

Almost surely, 2^{202202202020173} is an apocalyptic number.

It is an amenable number.

202202202020173 is a deficient number, since it is larger than the sum of its proper divisors (1).

202202202020173 is an equidigital number, since it uses as much as digits as its factorization.

202202202020173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 202202202020173 its reverse (371020202202202), we get a palindrome (573222404222375).

The spelling of 202202202020173 in words is "two hundred two trillion, two hundred two billion, two hundred two million, twenty thousand, one hundred seventy-three".