4221311 has 2 divisors, whose sum is σ = 4221312. Its totient is φ = 4221310.

The previous prime is 4221307. The next prime is 4221313. The reversal of 4221311 is 1131224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4221311 - 2² = 4221307 is a prime.

Together with 4221313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110655 + 2110656.

It is an arithmetic number, because the mean of its divisors is an integer number (2110656).

Almost surely, 2^4221311 is an apocalyptic number.

4221311 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221311 is an equidigital number, since it uses as much as digits as its factorization.

4221311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 14.

The square root of 4221311 is about 2054.5829260461. The cubic root of 4221311 is about 161.6152914777.

Adding to 4221311 its reverse (1131224), we get a palindrome (5352535).

It can be divided in two parts, 42213 and 11, that added together give a palindrome (42224).

The spelling of 4221311 in words is "four million, two hundred twenty-one thousand, three hundred eleven".