221003422552343 has 4 divisors (see below), whose sum is σ = 221003522952480. Its totient is φ = 221003322152208.

The previous prime is 221003422552337. The next prime is 221003422552391. The reversal of 221003422552343 is 343255224300122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221003422552343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221003422552297 and 221003422552306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221003422552303) 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 3 ways as a sum of consecutive naturals, for example, 46822478 + ... + 51325931.

It is an arithmetic number, because the mean of its divisors is an integer number (55250880738120).

Almost surely, 2^{221003422552343} is an apocalyptic number.

221003422552343 is a deficient number, since it is larger than the sum of its proper divisors (100400137).

221003422552343 is an equidigital number, since it uses as much as digits as its factorization.

221003422552343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100400136.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 221003422552343 its reverse (343255224300122), we get a palindrome (564258646852465).

The spelling of 221003422552343 in words is "two hundred twenty-one trillion, three billion, four hundred twenty-two million, five hundred fifty-two thousand, three hundred forty-three".