11120211011221 has 16 divisors (see below), whose sum is σ = 12247273301760. Its totient is φ = 10034530459200.

The previous prime is 11120211011171. The next prime is 11120211011227. The reversal of 11120211011221 is 12211011202111.

It is not a de Polignac number, because 11120211011221 - 2⁷ = 11120211011093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120211011195 and 11120211011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120211011227) 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, 53499535 + ... + 53706988.

It is an arithmetic number, because the mean of its divisors is an integer number (765454581360).

Almost surely, 2^{11120211011221} is an apocalyptic number.

It is an amenable number.

11120211011221 is a deficient number, since it is larger than the sum of its proper divisors (1127062290539).

11120211011221 is a wasteful number, since it uses less digits than its factorization.

11120211011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107206716.

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

Adding to 11120211011221 its reverse (12211011202111), we get a palindrome (23331222213332).

The spelling of 11120211011221 in words is "eleven trillion, one hundred twenty billion, two hundred eleven million, eleven thousand, two hundred twenty-one".