331020232100220 has 384 divisors, whose sum is σ = 1012199250198528. Its totient is φ = 80345432908800.

The previous prime is 331020232100191. The next prime is 331020232100267. The reversal of 331020232100220 is 22001232020133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9300654625 + ... + 9300690215.

It is an arithmetic number, because the mean of its divisors is an integer number (2635935547392).

Almost surely, 2^{331020232100220} is an apocalyptic number.

331020232100220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331020232100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506099625099264).

331020232100220 is an abundant number, since it is smaller than the sum of its proper divisors (681179018098308).

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

331020232100220 is a wasteful number, since it uses less digits than its factorization.

331020232100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36353 (or 36351 counting only the distinct ones).

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

Adding to 331020232100220 its reverse (22001232020133), we get a palindrome (353021464120353).

The spelling of 331020232100220 in words is "three hundred thirty-one trillion, twenty billion, two hundred thirty-two million, one hundred thousand, two hundred twenty".