4220231 has 4 divisors (see below), whose sum is σ = 4299912. Its totient is φ = 4140552.

The previous prime is 4220207. The next prime is 4220239. The reversal of 4220231 is 1320224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4220231 - 2¹⁴ = 4203847 is a prime.

It is a super-2 number, since 2×4220231² = 35620699386722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39761 + ... + 39866.

It is an arithmetic number, because the mean of its divisors is an integer number (1074978).

Almost surely, 2^4220231 is an apocalyptic number.

4220231 is a deficient number, since it is larger than the sum of its proper divisors (79681).

4220231 is an equidigital number, since it uses as much as digits as its factorization.

4220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79680.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4220231 is about 2054.3200821683. The cubic root of 4220231 is about 161.6015074975.

Adding to 4220231 its reverse (1320224), we get a palindrome (5540455).

The spelling of 4220231 in words is "four million, two hundred twenty thousand, two hundred thirty-one".