331121212222020 has 96 divisors (see below), whose sum is σ = 1025279928005760. Its totient is φ = 79172195189760.

The previous prime is 331121212222019. The next prime is 331121212222061. The reversal of 331121212222020 is 20222212121133.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3436245015 + ... + 3436341374.

It is an arithmetic number, because the mean of its divisors is an integer number (10679999250060).

Almost surely, 2^{331121212222020} is an apocalyptic number.

331121212222020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331121212222020 is an abundant number, since it is smaller than the sum of its proper divisors (694158715783740).

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

331121212222020 is a wasteful number, since it uses less digits than its factorization.

331121212222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6872586485 (or 6872586483 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 331121212222020 its reverse (20222212121133), we get a palindrome (351343424343153).

The spelling of 331121212222020 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty-two thousand, twenty".