11120121220011 has 16 divisors (see below), whose sum is σ = 14878803314688. Its totient is φ = 7387463952000.

The previous prime is 11120121219997. The next prime is 11120121220049. The reversal of 11120121220011 is 11002212102111.

It is a happy number.

It is not a de Polignac number, because 11120121220011 - 2⁹ = 11120121219499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11120121220211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3471631 + ... + 5855976.

It is an arithmetic number, because the mean of its divisors is an integer number (929925207168).

Almost surely, 2^{11120121220011} is an apocalyptic number.

11120121220011 is a deficient number, since it is larger than the sum of its proper divisors (3758682094677).

11120121220011 is an equidigital number, since it uses as much as digits as its factorization.

11120121220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329002.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11120121220011 its reverse (11002212102111), we get a palindrome (22122333322122).

The spelling of 11120121220011 in words is "eleven trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, eleven".