133013212011021 has 4 divisors (see below), whose sum is σ = 177350949348032. Its totient is φ = 88675474674012.

The previous prime is 133013212011013. The next prime is 133013212011073. The reversal of 133013212011021 is 120110212310331.

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 not a de Polignac number, because 133013212011021 - 2³ = 133013212011013 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 (133013212011721) 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, 22168868668501 + ... + 22168868668506.

It is an arithmetic number, because the mean of its divisors is an integer number (44337737337008).

Almost surely, 2^{133013212011021} is an apocalyptic number.

It is an amenable number.

133013212011021 is a deficient number, since it is larger than the sum of its proper divisors (44337737337011).

133013212011021 is an equidigital number, since it uses as much as digits as its factorization.

133013212011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44337737337010.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 133013212011021 its reverse (120110212310331), we get a palindrome (253123424321352).

The spelling of 133013212011021 in words is "one hundred thirty-three trillion, thirteen billion, two hundred twelve million, eleven thousand, twenty-one".