220331231330 has 16 divisors (see below), whose sum is σ = 453252818880. Its totient is φ = 75542136432.

The previous prime is 220331231317. The next prime is 220331231363. The reversal of 220331231330 is 33132133022.

It is a junction number, because it is equal to n+sod(n) for n = 220331231296 and 220331231305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573794440 + ... + 1573794579.

It is an arithmetic number, because the mean of its divisors is an integer number (28328301180).

Almost surely, 2^220331231330 is an apocalyptic number.

220331231330 is an abundant number, since it is smaller than the sum of its proper divisors (232921587550).

220331231330 is a wasteful number, since it uses less digits than its factorization.

220331231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147589033.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 220331231330 its reverse (33132133022), we get a palindrome (253463364352).

The spelling of 220331231330 in words is "two hundred twenty billion, three hundred thirty-one million, two hundred thirty-one thousand, three hundred thirty".