331012312212020 has 96 divisors (see below), whose sum is σ = 742857919927200. Its totient is φ = 123458190557184.

The previous prime is 331012312212019. The next prime is 331012312212077. The reversal of 331012312212020 is 20212213210133.

It can be written as a sum of positive squares in 16 ways, for example, as 12744285967396 + 318268026244624 = 3569914^2 + 17840068^2 .

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, 308136554 + ... + 309208926.

It is an arithmetic number, because the mean of its divisors is an integer number (7738103332575).

Almost surely, 2^{331012312212020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331012312212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371428959963600).

331012312212020 is an abundant number, since it is smaller than the sum of its proper divisors (411845607715180).

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

331012312212020 is a wasteful number, since it uses less digits than its factorization.

331012312212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080837 (or 1080835 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 331012312212020 its reverse (20212213210133), we get a palindrome (351224525422153).

The spelling of 331012312212020 in words is "three hundred thirty-one trillion, twelve billion, three hundred twelve million, two hundred twelve thousand, twenty".