221235401343 has 8 divisors (see below), whose sum is σ = 321796947456. Its totient is φ = 134082061400.

The previous prime is 221235401333. The next prime is 221235401351. The reversal of 221235401343 is 343104532122.

221235401343 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 a cyclic number.

It is not a de Polignac number, because 221235401343 - 2⁸ = 221235401087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221235401343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221235401323) 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, 3352051503 + ... + 3352051568.

It is an arithmetic number, because the mean of its divisors is an integer number (40224618432).

Almost surely, 2^221235401343 is an apocalyptic number.

221235401343 is a deficient number, since it is larger than the sum of its proper divisors (100561546113).

221235401343 is a wasteful number, since it uses less digits than its factorization.

221235401343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704103085.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 221235401343 its reverse (343104532122), we get a palindrome (564339933465).

The spelling of 221235401343 in words is "two hundred twenty-one billion, two hundred thirty-five million, four hundred one thousand, three hundred forty-three".