100212122021191 has 2 divisors, whose sum is σ = 100212122021192. Its totient is φ = 100212122021190.

The previous prime is 100212122021189. The next prime is 100212122021251. The reversal of 100212122021191 is 191120221212001.

It is a weak prime.

It is an emirp because it is prime and its reverse (191120221212001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100212122021191 - 2¹ = 100212122021189 is a prime.

Together with 100212122021189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100212122321191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106061010595 + 50106061010596.

It is an arithmetic number, because the mean of its divisors is an integer number (50106061010596).

Almost surely, 2^{100212122021191} is an apocalyptic number.

100212122021191 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212122021191 is an equidigital number, since it uses as much as digits as its factorization.

100212122021191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

Adding to 100212122021191 its reverse (191120221212001), we get a palindrome (291332343233192).

The spelling of 100212122021191 in words is "one hundred trillion, two hundred twelve billion, one hundred twenty-two million, twenty-one thousand, one hundred ninety-one".