221301032331020 has 48 divisors (see below), whose sum is σ = 496265718816000. Its totient is φ = 82710953122560.

The previous prime is 221301032331013. The next prime is 221301032331023. The reversal of 221301032331020 is 20133230103122.

It is not an unprimeable number, because it can be changed into a prime (221301032331023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6154070795 + ... + 6154106754.

It is an arithmetic number, because the mean of its divisors is an integer number (10338869142000).

Almost surely, 2^{221301032331020} is an apocalyptic number.

221301032331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221301032331020 is an abundant number, since it is smaller than the sum of its proper divisors (274964686484980).

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

221301032331020 is a wasteful number, since it uses less digits than its factorization.

221301032331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308177618 (or 12308177616 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221301032331020 its reverse (20133230103122), we get a palindrome (241434262434142).

The spelling of 221301032331020 in words is "two hundred twenty-one trillion, three hundred one billion, thirty-two million, three hundred thirty-one thousand, twenty".