213231221133 has 8 divisors (see below), whose sum is σ = 324923765568. Its totient is φ = 121846412064.

The previous prime is 213231221117. The next prime is 213231221143. The reversal of 213231221133 is 331122132312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213231221133 - 2⁴ = 213231221117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231221143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5076933816 + ... + 5076933857.

It is an arithmetic number, because the mean of its divisors is an integer number (40615470696).

Almost surely, 2^213231221133 is an apocalyptic number.

It is an amenable number.

213231221133 is a deficient number, since it is larger than the sum of its proper divisors (111692544435).

213231221133 is a wasteful number, since it uses less digits than its factorization.

213231221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153867683.

The product of its digits is 1296, while the sum is 24.

Adding to 213231221133 its reverse (331122132312), we get a palindrome (544353353445).

The spelling of 213231221133 in words is "two hundred thirteen billion, two hundred thirty-one million, two hundred twenty-one thousand, one hundred thirty-three".