12001120012021 has 8 divisors (see below), whose sum is σ = 13717503285120. Its totient is φ = 10285221128208.

The previous prime is 12001120011989. The next prime is 12001120012027. The reversal of 12001120012021 is 12021002110021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001120012021 - 2⁵ = 12001120011989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001120011992 and 12001120012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001120012027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121044226 + ... + 121143331.

It is an arithmetic number, because the mean of its divisors is an integer number (1714687910640).

Almost surely, 2^{12001120012021} is an apocalyptic number.

It is an amenable number.

12001120012021 is a deficient number, since it is larger than the sum of its proper divisors (1716383273099).

12001120012021 is an equidigital number, since it uses as much as digits as its factorization.

12001120012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242194643.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001120012021 its reverse (12021002110021), we get a palindrome (24022122122042).

The spelling of 12001120012021 in words is "twelve trillion, one billion, one hundred twenty million, twelve thousand, twenty-one".