331221133002100 has 72 divisors (see below), whose sum is σ = 789283409253696. Its totient is φ = 119646405600000.

The previous prime is 331221133002043. The next prime is 331221133002121. The reversal of 331221133002100 is 1200331122133.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 996887281 + ... + 997219480.

It is an arithmetic number, because the mean of its divisors is an integer number (10962269572968).

Almost surely, 2^{331221133002100} is an apocalyptic number.

It is an amenable number.

331221133002100 is an abundant number, since it is smaller than the sum of its proper divisors (458062276251596).

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

331221133002100 is a wasteful number, since it uses less digits than its factorization.

331221133002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994106937 (or 1994106930 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 331221133002100 its reverse (1200331122133), we get a palindrome (332421464124233).

The spelling of 331221133002100 in words is "three hundred thirty-one trillion, two hundred twenty-one billion, one hundred thirty-three million, two thousand, one hundred".