220321132 has 12 divisors (see below), whose sum is σ = 389166120. Its totient is φ = 109130816.

The previous prime is 220321111. The next prime is 220321147. The reversal of 220321132 is 231123022.

220321132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220321132² = 97082802411522848, which contains 22 as substring.

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, 256957 + ... + 257812.

It is an arithmetic number, because the mean of its divisors is an integer number (32430510).

Almost surely, 2^220321132 is an apocalyptic number.

It is an amenable number.

220321132 is a deficient number, since it is larger than the sum of its proper divisors (168844988).

220321132 is a wasteful number, since it uses less digits than its factorization.

220321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514880 (or 514878 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220321132 is about 14843.2183841645. The cubic root of 220321132 is about 603.9746601360.

Adding to 220321132 its reverse (231123022), we get a palindrome (451444154).

The spelling of 220321132 in words is "two hundred twenty million, three hundred twenty-one thousand, one hundred thirty-two".