4421421211 has 2 divisors, whose sum is σ = 4421421212. Its totient is φ = 4421421210.

The previous prime is 4421421209. The next prime is 4421421241. The reversal of 4421421211 is 1121241244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4421421211 - 2¹ = 4421421209 is a prime.

Together with 4421421209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4421421241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210710605 + 2210710606.

It is an arithmetic number, because the mean of its divisors is an integer number (2210710606).

Almost surely, 2^4421421211 is an apocalyptic number.

4421421211 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421421211 is an equidigital number, since it uses as much as digits as its factorization.

4421421211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 22.

The square root of 4421421211 is about 66493.7682117655. The cubic root of 4421421211 is about 1641.2974576772.

Adding to 4421421211 its reverse (1121241244), we get a palindrome (5542662455).

The spelling of 4421421211 in words is "four billion, four hundred twenty-one million, four hundred twenty-one thousand, two hundred eleven".