100000122197 has 2 divisors, whose sum is σ = 100000122198. Its totient is φ = 100000122196.

The previous prime is 100000122133. The next prime is 100000122217. The reversal of 100000122197 is 791221000001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98168795761 + 1831326436 = 313319^2 + 42794^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000122197 - 2⁶ = 100000122133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100000122127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000061098 + 50000061099.

It is an arithmetic number, because the mean of its divisors is an integer number (50000061099).

Almost surely, 2^100000122197 is an apocalyptic number.

It is an amenable number.

100000122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000122197 is an equidigital number, since it uses as much as digits as its factorization.

100000122197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 100000122197 its reverse (791221000001), we get a palindrome (891221122198).

The spelling of 100000122197 in words is "one hundred billion, one hundred twenty-two thousand, one hundred ninety-seven".