202221120193 has 2 divisors, whose sum is σ = 202221120194. Its totient is φ = 202221120192.

The previous prime is 202221120181. The next prime is 202221120229. The reversal of 202221120193 is 391021122202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170790439824 + 31430680369 = 413268^2 + 177287^2 .

It is a cyclic number.

It is not a de Polignac number, because 202221120193 - 2²⁵ = 202187565761 is a prime.

It is a super-2 number, since 2×202221120193² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202221120103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110560096 + 101110560097.

It is an arithmetic number, because the mean of its divisors is an integer number (101110560097).

Almost surely, 2^202221120193 is an apocalyptic number.

It is an amenable number.

202221120193 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221120193 is an equidigital number, since it uses as much as digits as its factorization.

202221120193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 202221120193 its reverse (391021122202), we get a palindrome (593242242395).

The spelling of 202221120193 in words is "two hundred two billion, two hundred twenty-one million, one hundred twenty thousand, one hundred ninety-three".