223421601 has 8 divisors (see below), whose sum is σ = 320810560. Its totient is φ = 137490192.

The previous prime is 223421581. The next prime is 223421621. The reversal of 223421601 is 106124322.

It is an interprime number because it is at equal distance from previous prime (223421581) and next prime (223421621).

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

It is not a de Polignac number, because 223421601 - 2¹⁸ = 223159457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223421621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2864341 + ... + 2864418.

It is an arithmetic number, because the mean of its divisors is an integer number (40101320).

Almost surely, 2^223421601 is an apocalyptic number.

It is an amenable number.

223421601 is a deficient number, since it is larger than the sum of its proper divisors (97388959).

223421601 is a wasteful number, since it uses less digits than its factorization.

223421601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728775.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 223421601 is about 14947.2941029472. The cubic root of 223421601 is about 606.7946176136.

Adding to 223421601 its reverse (106124322), we get a palindrome (329545923).

The spelling of 223421601 in words is "two hundred twenty-three million, four hundred twenty-one thousand, six hundred one".