220202117 has 2 divisors, whose sum is σ = 220202118. Its totient is φ = 220202116.

The previous prime is 220202113. The next prime is 220202123. The reversal of 220202117 is 711202022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179318881 + 40883236 = 13391^2 + 6394^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202117 - 2² = 220202113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 220202095 and 220202104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220202111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101058 + 110101059.

It is an arithmetic number, because the mean of its divisors is an integer number (110101059).

Almost surely, 2^220202117 is an apocalyptic number.

It is an amenable number.

220202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202117 is an equidigital number, since it uses as much as digits as its factorization.

220202117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 220202117 is about 14839.2087727075. The cubic root of 220202117 is about 603.8658871059.

Adding to 220202117 its reverse (711202022), we get a palindrome (931404139).

The spelling of 220202117 in words is "two hundred twenty million, two hundred two thousand, one hundred seventeen".