220331012 has 48 divisors (see below), whose sum is σ = 437305344. Its totient is φ = 96228000.

The previous prime is 220331003. The next prime is 220331039. The reversal of 220331012 is 210133022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221837 + ... + 222827.

It is an arithmetic number, because the mean of its divisors is an integer number (9110528).

Almost surely, 2^220331012 is an apocalyptic number.

220331012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220331012 is a deficient number, since it is larger than the sum of its proper divisors (216974332).

220331012 is a wasteful number, since it uses less digits than its factorization.

220331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 220331012 is about 14843.5511923529. The cubic root of 220331012 is about 603.9836881404.

Adding to 220331012 its reverse (210133022), we get a palindrome (430464034).

The spelling of 220331012 in words is "two hundred twenty million, three hundred thirty-one thousand, twelve".