11120121211 has 2 divisors, whose sum is σ = 11120121212. Its totient is φ = 11120121210.

The previous prime is 11120121193. The next prime is 11120121217. The reversal of 11120121211 is 11212102111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11120121211 - 2⁵ = 11120121179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11120121191 and 11120121200.

It is not a weakly prime, because it can be changed into another prime (11120121217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560060605 + 5560060606.

It is an arithmetic number, because the mean of its divisors is an integer number (5560060606).

Almost surely, 2^11120121211 is an apocalyptic number.

11120121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120121211 is an equidigital number, since it uses as much as digits as its factorization.

11120121211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11120121211 its reverse (11212102111), we get a palindrome (22332223322).

The spelling of 11120121211 in words is "eleven billion, one hundred twenty million, one hundred twenty-one thousand, two hundred eleven".