11121220121027 has 2 divisors, whose sum is σ = 11121220121028. Its totient is φ = 11121220121026.

The previous prime is 11121220121009. The next prime is 11121220121047. The reversal of 11121220121027 is 72012102212111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11121220121027 - 2¹⁸ = 11121219858883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121220120993 and 11121220121011.

It is not a weakly prime, because it can be changed into another prime (11121220121047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560610060513 + 5560610060514.

It is an arithmetic number, because the mean of its divisors is an integer number (5560610060514).

Almost surely, 2^{11121220121027} is an apocalyptic number.

11121220121027 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121220121027 is an equidigital number, since it uses as much as digits as its factorization.

11121220121027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 11121220121027 its reverse (72012102212111), we get a palindrome (83133322333138).

The spelling of 11121220121027 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, twenty-seven".