12110021021021 has 16 divisors (see below), whose sum is σ = 15506267706240. Its totient is φ = 9181342716480.

The previous prime is 12110021020913. The next prime is 12110021021027. The reversal of 12110021021021 is 12012012001121.

It is not a de Polignac number, because 12110021021021 - 2¹⁸ = 12110020758877 is a prime.

It is a Duffinian number.

12110021021021 is a modest number, since divided by 21021021 gives 12110 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12110021020987 and 12110021021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110021021027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2125307966 + ... + 2125313663.

It is an arithmetic number, because the mean of its divisors is an integer number (969141731640).

Almost surely, 2^{12110021021021} is an apocalyptic number.

12110021021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110021021021 is a deficient number, since it is larger than the sum of its proper divisors (3396246685219).

12110021021021 is a wasteful number, since it uses less digits than its factorization.

12110021021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250621684.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110021021021 its reverse (12012012001121), we get a palindrome (24122033022142).

The spelling of 12110021021021 in words is "twelve trillion, one hundred ten billion, twenty-one million, twenty-one thousand, twenty-one".