331002212020 has 24 divisors (see below), whose sum is σ = 719073772200. Its totient is φ = 127835336832.

The previous prime is 331002211999. The next prime is 331002212059. The reversal of 331002212020 is 20212200133.

It can be written as a sum of positive squares in 4 ways, for example, as 287505936 + 330714706084 = 16956^2 + 575078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331002211985 and 331002212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285346155 + ... + 285347314.

It is an arithmetic number, because the mean of its divisors is an integer number (29961407175).

Almost surely, 2^331002212020 is an apocalyptic number.

It is an amenable number.

331002212020 is an abundant number, since it is smaller than the sum of its proper divisors (388071560180).

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

331002212020 is a wasteful number, since it uses less digits than its factorization.

331002212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570693507 (or 570693505 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 331002212020 its reverse (20212200133), we get a palindrome (351214412153).

The spelling of 331002212020 in words is "three hundred thirty-one billion, two million, two hundred twelve thousand, twenty".