220131332 has 12 divisors (see below), whose sum is σ = 385423836. Its totient is φ = 110010240.

The previous prime is 220131323. The next prime is 220131343. The reversal of 220131332 is 233131022.

220131332 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 2 ways, for example, as 91853056 + 128278276 = 9584^2 + 11326^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220131332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4169 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (32118653).

Almost surely, 2^220131332 is an apocalyptic number.

It is an amenable number.

220131332 is a deficient number, since it is larger than the sum of its proper divisors (165292504).

220131332 is a wasteful number, since it uses less digits than its factorization.

220131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27718 (or 27716 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 220131332 is about 14836.8235144858. The cubic root of 220131332 is about 603.8011750005.

Adding to 220131332 its reverse (233131022), we get a palindrome (453262354).

It can be divided in two parts, 2201 and 31332, that added together give a palindrome (33533).

The spelling of 220131332 in words is "two hundred twenty million, one hundred thirty-one thousand, three hundred thirty-two".