220331220312 has 64 divisors (see below), whose sum is σ = 629583655680. Its totient is φ = 62945188992.

The previous prime is 220331220287. The next prime is 220331220341. The reversal of 220331220312 is 213022133022.

It is a happy number.

220331220312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1672483 + ... + 1799405.

It is an arithmetic number, because the mean of its divisors is an integer number (9837244620).

Almost surely, 2^220331220312 is an apocalyptic number.

It is an amenable number.

220331220312 is an abundant number, since it is smaller than the sum of its proper divisors (409252435368).

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

220331220312 is a wasteful number, since it uses less digits than its factorization.

220331220312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137272 (or 137268 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220331220312 its reverse (213022133022), we get a palindrome (433353353334).

The spelling of 220331220312 in words is "two hundred twenty billion, three hundred thirty-one million, two hundred twenty thousand, three hundred twelve".