20211120112291 has 2 divisors, whose sum is σ = 20211120112292. Its totient is φ = 20211120112290.

The previous prime is 20211120112279. The next prime is 20211120112297. The reversal of 20211120112291 is 19221102111202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20211120112291 - 2⁷ = 20211120112163 is a prime.

It is not a weakly prime, because it can be changed into another prime (20211120112297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105560056145 + 10105560056146.

It is an arithmetic number, because the mean of its divisors is an integer number (10105560056146).

Almost surely, 2^{20211120112291} is an apocalyptic number.

20211120112291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211120112291 is an equidigital number, since it uses as much as digits as its factorization.

20211120112291 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 25.

Adding to 20211120112291 its reverse (19221102111202), we get a palindrome (39432222223493).

The spelling of 20211120112291 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, one hundred twelve thousand, two hundred ninety-one".