221031330123000 has 128 divisors (see below), whose sum is σ = 690145396312320. Its totient is φ = 58896590057600.

The previous prime is 221031330122969. The next prime is 221031330123001. The reversal of 221031330123000 is 321033130122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221031330123001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24264582 + ... + 32106581.

It is an arithmetic number, because the mean of its divisors is an integer number (5391760908690).

Almost surely, 2^{221031330123000} is an apocalyptic number.

221031330123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221031330123000 is an abundant number, since it is smaller than the sum of its proper divisors (469114066189320).

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

221031330123000 is a wasteful number, since it uses less digits than its factorization.

221031330123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56372494 (or 56372480 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 221031330123000 its reverse (321033130122), we get a palindrome (221352363253122).

The spelling of 221031330123000 in words is "two hundred twenty-one trillion, thirty-one billion, three hundred thirty million, one hundred twenty-three thousand".