20201121122027 has 2 divisors, whose sum is σ = 20201121122028. Its totient is φ = 20201121122026.

The previous prime is 20201121122003. The next prime is 20201121122033. The reversal of 20201121122027 is 72022112110202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201121122027 - 2⁶ = 20201121121963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201121121993 and 20201121122011.

It is not a weakly prime, because it can be changed into another prime (20201121122047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100560561013 + 10100560561014.

It is an arithmetic number, because the mean of its divisors is an integer number (10100560561014).

Almost surely, 2^{20201121122027} is an apocalyptic number.

20201121122027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201121122027 is an equidigital number, since it uses as much as digits as its factorization.

20201121122027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 20201121122027 its reverse (72022112110202), we get a palindrome (92223233232229).

The spelling of 20201121122027 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty-seven".