4221275 has 6 divisors (see below), whose sum is σ = 5234412. Its totient is φ = 3377000.

The previous prime is 4221271. The next prime is 4221281. The reversal of 4221275 is 5721224.

It is a happy number.

It is not a de Polignac number, because 4221275 - 2² = 4221271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4221275.

It is not an unprimeable number, because it can be changed into a prime (4221271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84401 + ... + 84450.

It is an arithmetic number, because the mean of its divisors is an integer number (872402).

Almost surely, 2^4221275 is an apocalyptic number.

4221275 is a deficient number, since it is larger than the sum of its proper divisors (1013137).

4221275 is a wasteful number, since it uses less digits than its factorization.

4221275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168861 (or 168856 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 4221275 is about 2054.5741651252. The cubic root of 4221275 is about 161.6148320496.

Adding to 4221275 its reverse (5721224), we get a palindrome (9942499).

The spelling of 4221275 in words is "four million, two hundred twenty-one thousand, two hundred seventy-five".