12110112021 has 16 divisors (see below), whose sum is σ = 18455120000. Its totient is φ = 6919458048.

The previous prime is 12110112013. The next prime is 12110112031. The reversal of 12110112021 is 12021101121.

It is not a de Polignac number, because 12110112021 - 2³ = 12110112013 is a prime.

It is a super-2 number, since 2×12110112021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110111988 and 12110112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110112011) 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, 349905 + ... + 382953.

It is an arithmetic number, because the mean of its divisors is an integer number (1153445000).

Almost surely, 2^12110112021 is an apocalyptic number.

It is an amenable number.

12110112021 is a deficient number, since it is larger than the sum of its proper divisors (6345007979).

12110112021 is a wasteful number, since it uses less digits than its factorization.

12110112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50508.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12110112021 its reverse (12021101121), we get a palindrome (24131213142).

The spelling of 12110112021 in words is "twelve billion, one hundred ten million, one hundred twelve thousand, twenty-one".