12110112222021 has 48 divisors (see below), whose sum is σ = 19558718524800. Its totient is φ = 7156535616000.

The previous prime is 12110112222017. The next prime is 12110112222023. The reversal of 12110112222021 is 12022221101121.

It is not a de Polignac number, because 12110112222021 - 2² = 12110112222017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12110112221985 and 12110112222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110112222023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6617305 + ... + 8246753.

It is an arithmetic number, because the mean of its divisors is an integer number (407473302600).

Almost surely, 2^{12110112222021} is an apocalyptic number.

12110112222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110112222021 is a deficient number, since it is larger than the sum of its proper divisors (7448606302779).

12110112222021 is a wasteful number, since it uses less digits than its factorization.

12110112222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631338 (or 1631335 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12110112222021 its reverse (12022221101121), we get a palindrome (24132333323142).

The spelling of 12110112222021 in words is "twelve trillion, one hundred ten billion, one hundred twelve million, two hundred twenty-two thousand, twenty-one".