133221020333333 has 4 divisors (see below), whose sum is σ = 133230063931008. Its totient is φ = 133211976735660.

The previous prime is 133221020333321. The next prime is 133221020333339. The reversal of 133221020333333 is 333333020122331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133221020333333 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 133221020333333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133221020333339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4521776741 + ... + 4521806202.

It is an arithmetic number, because the mean of its divisors is an integer number (33307515982752).

Almost surely, 2^{133221020333333} is an apocalyptic number.

It is an amenable number.

133221020333333 is a deficient number, since it is larger than the sum of its proper divisors (9043597675).

133221020333333 is an equidigital number, since it uses as much as digits as its factorization.

133221020333333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043597674.

The product of its (nonzero) digits is 52488, while the sum is 32.

Adding to 133221020333333 its reverse (333333020122331), we get a palindrome (466554040455664).

The spelling of 133221020333333 in words is "one hundred thirty-three trillion, two hundred twenty-one billion, twenty million, three hundred thirty-three thousand, three hundred thirty-three".