11121120000221 has 16 divisors (see below), whose sum is σ = 13880995035648. Its totient is φ = 8655993687600.

The previous prime is 11121120000173. The next prime is 11121120000223. The reversal of 11121120000221 is 12200002112111.

11121120000221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11121120000221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121120000196 and 11121120000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121120000223) 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, 81715775 + ... + 81851756.

It is an arithmetic number, because the mean of its divisors is an integer number (867562189728).

Almost surely, 2^{11121120000221} is an apocalyptic number.

11121120000221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11121120000221 is a deficient number, since it is larger than the sum of its proper divisors (2759875035427).

11121120000221 is a wasteful number, since it uses less digits than its factorization.

11121120000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163568432.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11121120000221 its reverse (12200002112111), we get a palindrome (23321122112332).

The spelling of 11121120000221 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty million, two hundred twenty-one", and thus it is an aban number.