11110120012021 has 4 divisors (see below), whose sum is σ = 11110132190700. Its totient is φ = 11110107833344.

The previous prime is 11110120012003. The next prime is 11110120012073. The reversal of 11110120012021 is 12021002101111.

It is a happy number.

11110120012021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1451637015921 + 9658482996100 = 1204839^2 + 3107810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11110120012021 - 2¹⁵ = 11110119979253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110120011992 and 11110120012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110120013021) 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, 4599436 + ... + 6585973.

It is an arithmetic number, because the mean of its divisors is an integer number (2777533047675).

Almost surely, 2^{11110120012021} is an apocalyptic number.

It is an amenable number.

11110120012021 is a deficient number, since it is larger than the sum of its proper divisors (12178679).

11110120012021 is an equidigital number, since it uses as much as digits as its factorization.

11110120012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12178678.

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

Adding to 11110120012021 its reverse (12021002101111), we get a palindrome (23131122113132).

The spelling of 11110120012021 in words is "eleven trillion, one hundred ten billion, one hundred twenty million, twelve thousand, twenty-one".