12002112122021 has 32 divisors (see below), whose sum is σ = 15346859581440. Its totient is φ = 9144170171136.

The previous prime is 12002112121999. The next prime is 12002112122029. The reversal of 12002112122021 is 12022121120021.

12002112122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12002112122021 - 2²² = 12002107927717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002112122029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27537791 + ... + 27970236.

It is an arithmetic number, because the mean of its divisors is an integer number (479589361920).

Almost surely, 2^{12002112122021} is an apocalyptic number.

It is an amenable number.

12002112122021 is a deficient number, since it is larger than the sum of its proper divisors (3344747459419).

12002112122021 is a wasteful number, since it uses less digits than its factorization.

12002112122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55508153.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12002112122021 its reverse (12022121120021), we get a palindrome (24024233242042).

The spelling of 12002112122021 in words is "twelve trillion, two billion, one hundred twelve million, one hundred twenty-two thousand, twenty-one".