223024121 has 6 divisors (see below), whose sum is σ = 225672570. Its totient is φ = 220378928.

The previous prime is 223024117. The next prime is 223024157. The reversal of 223024121 is 121420322.

It can be written as a sum of positive squares in only one way, i.e., 160376896 + 62647225 = 12664^2 + 7915^2 .

It is not a de Polignac number, because 223024121 - 2² = 223024117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223024121.

It is not an unprimeable number, because it can be changed into a prime (223024171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140096 + ... + 141678.

It is an arithmetic number, because the mean of its divisors is an integer number (37612095).

Almost surely, 2^223024121 is an apocalyptic number.

It is an amenable number.

223024121 is a deficient number, since it is larger than the sum of its proper divisors (2648449).

223024121 is an frugal number, since it uses more digits than its factorization.

223024121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3255 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 223024121 is about 14933.9921320456. The cubic root of 223024121 is about 606.4345630581.

Adding to 223024121 its reverse (121420322), we get a palindrome (344444443).

The spelling of 223024121 in words is "two hundred twenty-three million, twenty-four thousand, one hundred twenty-one".