221343220983 has 8 divisors (see below), whose sum is σ = 295128457600. Its totient is φ = 147560065848.

The previous prime is 221343220979. The next prime is 221343220991. The reversal of 221343220983 is 389022343122.

221343220983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221343220983 - 2² = 221343220979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221343220183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252553 + ... + 711666.

It is an arithmetic number, because the mean of its divisors is an integer number (36891057200).

Almost surely, 2^221343220983 is an apocalyptic number.

221343220983 is a deficient number, since it is larger than the sum of its proper divisors (73785236617).

221343220983 is an equidigital number, since it uses as much as digits as its factorization.

221343220983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040741.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 221343220983 in words is "two hundred twenty-one billion, three hundred forty-three million, two hundred twenty thousand, nine hundred eighty-three".