110012220021 has 24 divisors (see below), whose sum is σ = 166431016192. Its totient is φ = 64523289600.

The previous prime is 110012219987. The next prime is 110012220053. The reversal of 110012220021 is 120022210011.

It is not a de Polignac number, because 110012220021 - 2³⁰ = 108938478197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 110012219979 and 110012220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110012220221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4876876 + ... + 4899381.

Almost surely, 2^110012220021 is an apocalyptic number.

110012220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110012220021 is a deficient number, since it is larger than the sum of its proper divisors (56418796171).

110012220021 is a wasteful number, since it uses less digits than its factorization.

110012220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9776313 (or 9776302 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 110012220021 its reverse (120022210011), we get a palindrome (230034430032).

It can be divided in two parts, 110012 and 220021, that added together give a palindrome (330033).

The spelling of 110012220021 in words is "one hundred ten billion, twelve million, two hundred twenty thousand, twenty-one".