12032221211 has 4 divisors (see below), whose sum is σ = 12032862912. Its totient is φ = 12031579512.

The previous prime is 12032221207. The next prime is 12032221217. The reversal of 12032221211 is 11212223021.

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 12032221211 - 2² = 12032221207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12032221211.

It is not an unprimeable number, because it can be changed into a prime (12032221217) 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, 291851 + ... + 330516.

It is an arithmetic number, because the mean of its divisors is an integer number (3008215728).

Almost surely, 2^12032221211 is an apocalyptic number.

12032221211 is a deficient number, since it is larger than the sum of its proper divisors (641701).

12032221211 is an equidigital number, since it uses as much as digits as its factorization.

12032221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641700.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12032221211 its reverse (11212223021), we get a palindrome (23244444232).

The spelling of 12032221211 in words is "twelve billion, thirty-two million, two hundred twenty-one thousand, two hundred eleven".