133211221322321 has 4 divisors (see below), whose sum is σ = 133353389115492. Its totient is φ = 133069053529152.

The previous prime is 133211221322303. The next prime is 133211221322351. The reversal of 133211221322321 is 123223122112331.

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 1867335915025 + 131343885407296 = 1366505^2 + 11460536^2 .

It is a cyclic number.

It is not a de Polignac number, because 133211221322321 - 2²⁶ = 133211154213457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133211221322351) 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, 71083895180 + ... + 71083897053.

It is an arithmetic number, because the mean of its divisors is an integer number (33338347278873).

Almost surely, 2^{133211221322321} is an apocalyptic number.

It is an amenable number.

133211221322321 is a deficient number, since it is larger than the sum of its proper divisors (142167793171).

133211221322321 is an equidigital number, since it uses as much as digits as its factorization.

133211221322321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142167793170.

The product of its digits is 5184, while the sum is 29.

Adding to 133211221322321 its reverse (123223122112331), we get a palindrome (256434343434652).

The spelling of 133211221322321 in words is "one hundred thirty-three trillion, two hundred eleven billion, two hundred twenty-one million, three hundred twenty-two thousand, three hundred twenty-one".