223401121 has 2 divisors, whose sum is σ = 223401122. Its totient is φ = 223401120.

The previous prime is 223401091. The next prime is 223401149. The reversal of 223401121 is 121104322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220106896 + 3294225 = 14836^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 223401121 - 2⁵ = 223401089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223401095 and 223401104.

It is not a weakly prime, because it can be changed into another prime (223401161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111700560 + 111700561.

It is an arithmetic number, because the mean of its divisors is an integer number (111700561).

Almost surely, 2^223401121 is an apocalyptic number.

It is an amenable number.

223401121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223401121 is an equidigital number, since it uses as much as digits as its factorization.

223401121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 223401121 is about 14946.6090134184. The cubic root of 223401121 is about 606.7760763842.

Adding to 223401121 its reverse (121104322), we get a palindrome (344505443).

The spelling of 223401121 in words is "two hundred twenty-three million, four hundred one thousand, one hundred twenty-one".