223021344121 has 8 divisors (see below), whose sum is σ = 223799103360. Its totient is φ = 222243698352.

The previous prime is 223021344113. The next prime is 223021344127. The reversal of 223021344121 is 121443120322.

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 223021344121 - 2³ = 223021344113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223021344127) 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 7 ways as a sum of consecutive naturals, for example, 6511840 + ... + 6545998.

It is an arithmetic number, because the mean of its divisors is an integer number (27974887920).

Almost surely, 2^223021344121 is an apocalyptic number.

It is an amenable number.

223021344121 is a deficient number, since it is larger than the sum of its proper divisors (777759239).

223021344121 is a wasteful number, since it uses less digits than its factorization.

223021344121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56735.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 223021344121 its reverse (121443120322), we get a palindrome (344464464443).

The spelling of 223021344121 in words is "two hundred twenty-three billion, twenty-one million, three hundred forty-four thousand, one hundred twenty-one".