100202122217 has 2 divisors, whose sum is σ = 100202122218. Its totient is φ = 100202122216.

The previous prime is 100202122183. The next prime is 100202122243. The reversal of 100202122217 is 712221202001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98433415081 + 1768707136 = 313741^2 + 42056^2 .

It is a cyclic number.

It is not a de Polignac number, because 100202122217 - 2¹⁰ = 100202121193 is a prime.

It is not a weakly prime, because it can be changed into another prime (100202122277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50101061108 + 50101061109.

It is an arithmetic number, because the mean of its divisors is an integer number (50101061109).

Almost surely, 2^100202122217 is an apocalyptic number.

It is an amenable number.

100202122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

100202122217 is an equidigital number, since it uses as much as digits as its factorization.

100202122217 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 20.

Adding to 100202122217 its reverse (712221202001), we get a palindrome (812423324218).

The spelling of 100202122217 in words is "one hundred billion, two hundred two million, one hundred twenty-two thousand, two hundred seventeen".