12002001112021 has 32 divisors (see below), whose sum is σ = 13160413550592. Its totient is φ = 10899121121280.

The previous prime is 12002001111977. The next prime is 12002001112037. The reversal of 12002001112021 is 12021110020021.

It is not a de Polignac number, because 12002001112021 - 2²¹ = 12001999014869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002001111992 and 12002001112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002001112091) 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, 83257276 + ... + 83401306.

It is an arithmetic number, because the mean of its divisors is an integer number (411262923456).

Almost surely, 2^{12002001112021} is an apocalyptic number.

It is an amenable number.

12002001112021 is a deficient number, since it is larger than the sum of its proper divisors (1158412438571).

12002001112021 is a wasteful number, since it uses less digits than its factorization.

12002001112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145189.

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

Adding to 12002001112021 its reverse (12021110020021), we get a palindrome (24023111132042).

The spelling of 12002001112021 in words is "twelve trillion, two billion, one million, one hundred twelve thousand, twenty-one".