202020110221117 has 2 divisors, whose sum is σ = 202020110221118. Its totient is φ = 202020110221116.

The previous prime is 202020110221099. The next prime is 202020110221219. The reversal of 202020110221117 is 711122011020202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179635610758041 + 22384499463076 = 13402821^2 + 4731226^2 .

It is a cyclic number.

It is not a de Polignac number, because 202020110221117 - 2⁷ = 202020110220989 is a prime.

It is a super-2 number, since 2×202020110221117² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202020110261117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010055110558 + 101010055110559.

It is an arithmetic number, because the mean of its divisors is an integer number (101010055110559).

Almost surely, 2^{202020110221117} is an apocalyptic number.

It is an amenable number.

202020110221117 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020110221117 is an equidigital number, since it uses as much as digits as its factorization.

202020110221117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 202020110221117 its reverse (711122011020202), we get a palindrome (913142121241319).

The spelling of 202020110221117 in words is "two hundred two trillion, twenty billion, one hundred ten million, two hundred twenty-one thousand, one hundred seventeen".