133033210021 has 4 divisors (see below), whose sum is σ = 133183871392. Its totient is φ = 132882548652.

The previous prime is 133033210019. The next prime is 133033210097. The reversal of 133033210021 is 120012330331.

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 not a de Polignac number, because 133033210021 - 2¹ = 133033210019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133033213021) 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, 75329361 + ... + 75331126.

It is an arithmetic number, because the mean of its divisors is an integer number (33295967848).

Almost surely, 2^133033210021 is an apocalyptic number.

It is an amenable number.

133033210021 is a deficient number, since it is larger than the sum of its proper divisors (150661371).

133033210021 is an equidigital number, since it uses as much as digits as its factorization.

133033210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150661370.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 133033210021 its reverse (120012330331), we get a palindrome (253045540352).

The spelling of 133033210021 in words is "one hundred thirty-three billion, thirty-three million, two hundred ten thousand, twenty-one".