220102211117 has 2 divisors, whose sum is σ = 220102211118. Its totient is φ = 220102211116.

The previous prime is 220102211111. The next prime is 220102211221. The reversal of 220102211117 is 711112201022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130952791876 + 89149419241 = 361874^2 + 298579^2 .

It is a cyclic number.

It is not a de Polignac number, because 220102211117 - 2⁴ = 220102211101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220102211111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110051105558 + 110051105559.

It is an arithmetic number, because the mean of its divisors is an integer number (110051105559).

Almost surely, 2^220102211117 is an apocalyptic number.

It is an amenable number.

220102211117 is a deficient number, since it is larger than the sum of its proper divisors (1).

220102211117 is an equidigital number, since it uses as much as digits as its factorization.

220102211117 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 20.

Adding to 220102211117 its reverse (711112201022), we get a palindrome (931214412139).

The spelling of 220102211117 in words is "two hundred twenty billion, one hundred two million, two hundred eleven thousand, one hundred seventeen".