12002001211 has 4 divisors (see below), whose sum is σ = 12004461000. Its totient is φ = 11999541424.

The previous prime is 12002001203. The next prime is 12002001223. The reversal of 12002001211 is 11210020021.

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

It is a cyclic number.

It is not a de Polignac number, because 12002001211 - 2³ = 12002001203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002001811) 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, 1222561 + ... + 1232338.

It is an arithmetic number, because the mean of its divisors is an integer number (3001115250).

Almost surely, 2^12002001211 is an apocalyptic number.

12002001211 is a deficient number, since it is larger than the sum of its proper divisors (2459789).

12002001211 is an equidigital number, since it uses as much as digits as its factorization.

12002001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459788.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12002001211 its reverse (11210020021), we get a palindrome (23212021232).

The spelling of 12002001211 in words is "twelve billion, two million, one thousand, two hundred eleven".