220131132 has 96 divisors (see below), whose sum is σ = 573210624. Its totient is φ = 65318400.

The previous prime is 220131089. The next prime is 220131133. The reversal of 220131132 is 231131022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812157 + ... + 812427.

It is an arithmetic number, because the mean of its divisors is an integer number (5970944).

Almost surely, 2^220131132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220131132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286605312).

220131132 is an abundant number, since it is smaller than the sum of its proper divisors (353079492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220131132 is a wasteful number, since it uses less digits than its factorization.

220131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 220131132 is about 14836.8167744971. The cubic root of 220131132 is about 603.8009921396.

Adding to 220131132 its reverse (231131022), we get a palindrome (451262154).

It can be divided in two parts, 2201 and 31132, that added together give a palindrome (33333).

The spelling of 220131132 in words is "two hundred twenty million, one hundred thirty-one thousand, one hundred thirty-two".