220202221001173 has 2 divisors, whose sum is σ = 220202221001174. Its totient is φ = 220202221001172.

The previous prime is 220202221001153. The next prime is 220202221001177. The reversal of 220202221001173 is 371100122202022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208292495604964 + 11909725396209 = 14432342^2 + 3451047^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202221001173 - 2²⁹ = 220201684130261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220202221001177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101110500586 + 110101110500587.

It is an arithmetic number, because the mean of its divisors is an integer number (110101110500587).

Almost surely, 2^{220202221001173} is an apocalyptic number.

It is an amenable number.

220202221001173 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202221001173 is an equidigital number, since it uses as much as digits as its factorization.

220202221001173 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 220202221001173 its reverse (371100122202022), we get a palindrome (591302343203195).

The spelling of 220202221001173 in words is "two hundred twenty trillion, two hundred two billion, two hundred twenty-one million, one thousand, one hundred seventy-three".