11120121121009 has 2 divisors, whose sum is σ = 11120121121010. Its totient is φ = 11120121121008.

The previous prime is 11120121120917. The next prime is 11120121121027. The reversal of 11120121121009 is 90012112102111.

It is a happy number.

11120121121009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6995046384225 + 4125074736784 = 2644815^2 + 2031028^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120121121009 - 2¹⁷ = 11120120989937 is a prime.

It is not a weakly prime, because it can be changed into another prime (11120121121049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560060560504 + 5560060560505.

It is an arithmetic number, because the mean of its divisors is an integer number (5560060560505).

Almost surely, 2^{11120121121009} is an apocalyptic number.

It is an amenable number.

11120121121009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120121121009 is an equidigital number, since it uses as much as digits as its factorization.

11120121121009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 11120121121009 in words is "eleven trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, nine".