100122221100091 has 2 divisors, whose sum is σ = 100122221100092. Its totient is φ = 100122221100090.

The previous prime is 100122221099993. The next prime is 100122221100133. The reversal of 100122221100091 is 190001122221001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100122221100091 - 2²⁹ = 100121684229179 is a prime.

It is not a weakly prime, because it can be changed into another prime (100122221100191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061110550045 + 50061110550046.

It is an arithmetic number, because the mean of its divisors is an integer number (50061110550046).

Almost surely, 2^{100122221100091} is an apocalyptic number.

100122221100091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100122221100091 is an equidigital number, since it uses as much as digits as its factorization.

100122221100091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 100122221100091 its reverse (190001122221001), we get a palindrome (290123343321092).

The spelling of 100122221100091 in words is "one hundred trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, ninety-one".