223242121 has 8 divisors (see below), whose sum is σ = 224360000. Its totient is φ = 222127920.

The previous prime is 223242119. The next prime is 223242133. The reversal of 223242121 is 121242322.

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 223242121 - 2¹ = 223242119 is a prime.

It is a super-3 number, since 3×223242121³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223242101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314515 + ... + 315223.

It is an arithmetic number, because the mean of its divisors is an integer number (28045000).

Almost surely, 2^223242121 is an apocalyptic number.

It is an amenable number.

223242121 is a deficient number, since it is larger than the sum of its proper divisors (1117879).

223242121 is an equidigital number, since it uses as much as digits as its factorization.

223242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its digits is 384, while the sum is 19.

The square root of 223242121 is about 14941.2891344756. The cubic root of 223242121 is about 606.6320897990.

Adding to 223242121 its reverse (121242322), we get a palindrome (344484443).

The spelling of 223242121 in words is "two hundred twenty-three million, two hundred forty-two thousand, one hundred twenty-one".