331002220322020 has 48 divisors (see below), whose sum is σ = 748705193773488. Its totient is φ = 122194826196480.

The previous prime is 331002220321967. The next prime is 331002220322021. The reversal of 331002220322020 is 20223022200133.

It can be written as a sum of positive squares in 8 ways, for example, as 11452917934656 + 319549302387364 = 3384216^2 + 17875942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331002220321982 and 331002220322000.

It is not an unprimeable number, because it can be changed into a prime (331002220322021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109855671 + ... + 112828510.

It is an arithmetic number, because the mean of its divisors is an integer number (15598024870281).

Almost surely, 2^{331002220322020} is an apocalyptic number.

It is an amenable number.

331002220322020 is an abundant number, since it is smaller than the sum of its proper divisors (417702973451468).

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

331002220322020 is a wasteful number, since it uses less digits than its factorization.

331002220322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222689920 (or 222689918 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 331002220322020 its reverse (20223022200133), we get a palindrome (351225242522153).

The spelling of 331002220322020 in words is "three hundred thirty-one trillion, two billion, two hundred twenty million, three hundred twenty-two thousand, twenty".