220231210331220 has 96 divisors (see below), whose sum is σ = 672785040130560. Its totient is φ = 53383130540160.

The previous prime is 220231210331203. The next prime is 220231210331263. The reversal of 220231210331220 is 22133012132022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13903062 + ... + 25174541.

It is an arithmetic number, because the mean of its divisors is an integer number (7008177501360).

Almost surely, 2^{220231210331220} is an apocalyptic number.

220231210331220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220231210331220 is an abundant number, since it is smaller than the sum of its proper divisors (452553829799340).

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

220231210331220 is a wasteful number, since it uses less digits than its factorization.

220231210331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39086165 (or 39086163 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 220231210331220 its reverse (22133012132022), we get a palindrome (242364222463242).

The spelling of 220231210331220 in words is "two hundred twenty trillion, two hundred thirty-one billion, two hundred ten million, three hundred thirty-one thousand, two hundred twenty".