11110110021 has 12 divisors (see below), whose sum is σ = 16048850272. Its totient is φ = 7406318376.

The previous prime is 11110110019. The next prime is 11110110023. The reversal of 11110110021 is 12001101111.

11110110021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11110110019) and next prime (11110110023).

It is not a de Polignac number, because 11110110021 - 2¹ = 11110110019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110109985 and 11110110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294960 + ... + 330486.

Almost surely, 2^11110110021 is an apocalyptic number.

It is an amenable number.

11110110021 is a deficient number, since it is larger than the sum of its proper divisors (4938740251).

11110110021 is a wasteful number, since it uses less digits than its factorization.

11110110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70280 (or 70277 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11110110021 its reverse (12001101111), we get a palindrome (23111211132).

The spelling of 11110110021 in words is "eleven billion, one hundred ten million, one hundred ten thousand, twenty-one".