221133130132 has 24 divisors (see below), whose sum is σ = 391121445960. Its totient is φ = 109385865600.

The previous prime is 221133130129. The next prime is 221133130201. The reversal of 221133130132 is 231031331122.

221133130132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42141520656 + 178991609476 = 205284^2 + 423074^2 .

It is a super-2 number, since 2×221133130132² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301594 + ... + 730222.

It is an arithmetic number, because the mean of its divisors is an integer number (16296726915).

Almost surely, 2^221133130132 is an apocalyptic number.

It is an amenable number.

221133130132 is a deficient number, since it is larger than the sum of its proper divisors (169988315828).

221133130132 is a wasteful number, since it uses less digits than its factorization.

221133130132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430011 (or 430009 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 221133130132 its reverse (231031331122), we get a palindrome (452164461254).

The spelling of 221133130132 in words is "two hundred twenty-one billion, one hundred thirty-three million, one hundred thirty thousand, one hundred thirty-two".