223234222144421 has 2 divisors, whose sum is σ = 223234222144422. Its totient is φ = 223234222144420.

The previous prime is 223234222144399. The next prime is 223234222144429. The reversal of 223234222144421 is 124441222432322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210963598471396 + 12270623673025 = 14524586^2 + 3502945^2 .

It is a cyclic number.

It is not a de Polignac number, because 223234222144421 - 2³⁴ = 223217042275237 is a prime.

It is a super-3 number, since 3×223234222144421³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223234222144429) 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 as a sum of consecutive naturals, namely, 111617111072210 + 111617111072211.

It is an arithmetic number, because the mean of its divisors is an integer number (111617111072211).

Almost surely, 2^{223234222144421} is an apocalyptic number.

It is an amenable number.

223234222144421 is a deficient number, since it is larger than the sum of its proper divisors (1).

223234222144421 is an equidigital number, since it uses as much as digits as its factorization.

223234222144421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294912, while the sum is 38.

Adding to 223234222144421 its reverse (124441222432322), we get a palindrome (347675444576743).

The spelling of 223234222144421 in words is "two hundred twenty-three trillion, two hundred thirty-four billion, two hundred twenty-two million, one hundred forty-four thousand, four hundred twenty-one".