3121021200200 has 48 divisors (see below), whose sum is σ = 7261952431860. Its totient is φ = 1247448800000.

The previous prime is 3121021200151. The next prime is 3121021200217. The reversal of 3121021200200 is 20021201213.

It is a happy number.

3121021200200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 112857027364 + 3008164172836 = 335942^2 + 1734406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5737151 + ... + 6257550.

Almost surely, 2^{3121021200200} is an apocalyptic number.

It is an amenable number.

3121021200200 is an abundant number, since it is smaller than the sum of its proper divisors (4140931231660).

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

3121021200200 is a wasteful number, since it uses less digits than its factorization.

3121021200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11996018 (or 11996009 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 3121021200200 its reverse (20021201213), we get a palindrome (3141042401413).

The spelling of 3121021200200 in words is "three trillion, one hundred twenty-one billion, twenty-one million, two hundred thousand, two hundred".