12002120211001 has 4 divisors (see below), whose sum is σ = 12036708454032. Its totient is φ = 11967531967972.

The previous prime is 12002120210987. The next prime is 12002120211041. The reversal of 12002120211001 is 10011202120021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12002120211001 - 2²⁷ = 12001985993273 is a prime.

It is a super-2 number, since 2×12002120211001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002120211041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17294120995 + ... + 17294121688.

It is an arithmetic number, because the mean of its divisors is an integer number (3009177113508).

Almost surely, 2^{12002120211001} is an apocalyptic number.

It is an amenable number.

12002120211001 is a deficient number, since it is larger than the sum of its proper divisors (34588243031).

12002120211001 is an equidigital number, since it uses as much as digits as its factorization.

12002120211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34588243030.

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

Adding to 12002120211001 its reverse (10011202120021), we get a palindrome (22013322331022).

The spelling of 12002120211001 in words is "twelve trillion, two billion, one hundred twenty million, two hundred eleven thousand, one".