12000221211001 has 4 divisors (see below), whose sum is σ = 12706116576372. Its totient is φ = 11294325845632.

The previous prime is 12000221210987. The next prime is 12000221211029. The reversal of 12000221211001 is 10011212200021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4739481391225 + 7260739819776 = 2177035^2 + 2694576^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000221211001 - 2⁹ = 12000221210489 is a prime.

It is a super-2 number, since 2×12000221211001² (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 (12000221211071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352947682660 + ... + 352947682693.

It is an arithmetic number, because the mean of its divisors is an integer number (3176529144093).

Almost surely, 2^{12000221211001} is an apocalyptic number.

It is an amenable number.

12000221211001 is a deficient number, since it is larger than the sum of its proper divisors (705895365371).

12000221211001 is an equidigital number, since it uses as much as digits as its factorization.

12000221211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705895365370.

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

Adding to 12000221211001 its reverse (10011212200021), we get a palindrome (22011433411022).

The spelling of 12000221211001 in words is "twelve trillion, two hundred twenty-one million, two hundred eleven thousand, one".