11120221012111 has 4 divisors (see below), whose sum is σ = 11123283593824. Its totient is φ = 11117158430400.

The previous prime is 11120221012057. The next prime is 11120221012189. The reversal of 11120221012111 is 11121012202111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11120221012111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120221010111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531285410 + ... + 1531292671.

It is an arithmetic number, because the mean of its divisors is an integer number (2780820898456).

Almost surely, 2^{11120221012111} is an apocalyptic number.

11120221012111 is a deficient number, since it is larger than the sum of its proper divisors (3062581713).

11120221012111 is an equidigital number, since it uses as much as digits as its factorization.

11120221012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062581712.

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

Adding to 11120221012111 its reverse (11121012202111), we get a palindrome (22241233214222).

The spelling of 11120221012111 in words is "eleven trillion, one hundred twenty billion, two hundred twenty-one million, twelve thousand, one hundred eleven".