12133211212211 has 4 divisors (see below), whose sum is σ = 12279394479912. Its totient is φ = 11987027944512.

The previous prime is 12133211212207. The next prime is 12133211212231. The reversal of 12133211212211 is 11221211233121.

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 12133211212211 - 2² = 12133211212207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12133211212231) 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, 73091633726 + ... + 73091633891.

It is an arithmetic number, because the mean of its divisors is an integer number (3069848619978).

Almost surely, 2^{12133211212211} is an apocalyptic number.

12133211212211 is a deficient number, since it is larger than the sum of its proper divisors (146183267701).

12133211212211 is an equidigital number, since it uses as much as digits as its factorization.

12133211212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146183267700.

The product of its digits is 288, while the sum is 23.

Adding to 12133211212211 its reverse (11221211233121), we get a palindrome (23354422445332).

The spelling of 12133211212211 in words is "twelve trillion, one hundred thirty-three billion, two hundred eleven million, two hundred twelve thousand, two hundred eleven".