4321212223 has 2 divisors, whose sum is σ = 4321212224. Its totient is φ = 4321212222.

The previous prime is 4321212221. The next prime is 4321212263. The reversal of 4321212223 is 3222121234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4321212223 - 2¹ = 4321212221 is a prime.

Together with 4321212221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4321212194 and 4321212203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4321212221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160606111 + 2160606112.

It is an arithmetic number, because the mean of its divisors is an integer number (2160606112).

Almost surely, 2^4321212223 is an apocalyptic number.

4321212223 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321212223 is an equidigital number, since it uses as much as digits as its factorization.

4321212223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

The square root of 4321212223 is about 65735.9279465955. The cubic root of 4321212223 is about 1628.8028927225.

Adding to 4321212223 its reverse (3222121234), we get a palindrome (7543333457).

The spelling of 4321212223 in words is "four billion, three hundred twenty-one million, two hundred twelve thousand, two hundred twenty-three".