4221355 has 8 divisors (see below), whose sum is σ = 5363712. Its totient is φ = 3178368.

The previous prime is 4221337. The next prime is 4221361. The reversal of 4221355 is 5531224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4221355 - 2⁵ = 4221323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24747 + ... + 24916.

It is an arithmetic number, because the mean of its divisors is an integer number (670464).

Almost surely, 2^4221355 is an apocalyptic number.

4221355 is a deficient number, since it is larger than the sum of its proper divisors (1142357).

4221355 is a wasteful number, since it uses less digits than its factorization.

4221355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49685.

The product of its digits is 1200, while the sum is 22.

The square root of 4221355 is about 2054.5936337875. The cubic root of 4221355 is about 161.6158529974.

Adding to 4221355 its reverse (5531224), we get a palindrome (9752579).

The spelling of 4221355 in words is "four million, two hundred twenty-one thousand, three hundred fifty-five".