20012200221191 has 2 divisors, whose sum is σ = 20012200221192. Its totient is φ = 20012200221190.

The previous prime is 20012200221119. The next prime is 20012200221217. The reversal of 20012200221191 is 19112200221002.

Together with previous prime (20012200221119) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012200221191 - 2¹⁰ = 20012200220167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012206221191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006100110595 + 10006100110596.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100110596).

Almost surely, 2^{20012200221191} is an apocalyptic number.

20012200221191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012200221191 is an equidigital number, since it uses as much as digits as its factorization.

20012200221191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 20012200221191 its reverse (19112200221002), we get a palindrome (39124400442193).

The spelling of 20012200221191 in words is "twenty trillion, twelve billion, two hundred million, two hundred twenty-one thousand, one hundred ninety-one".