4000220231 has 4 divisors (see below), whose sum is σ = 4571680272. Its totient is φ = 3428760192.

The previous prime is 4000220153. The next prime is 4000220239. The reversal of 4000220231 is 1320220004.

4000220231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4000220231 - 2¹⁴ = 4000203847 is a prime.

It is a super-2 number, since 2×4000220231² = 32003523793003386722, 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 (4000220239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285730010 + ... + 285730023.

It is an arithmetic number, because the mean of its divisors is an integer number (1142920068).

Almost surely, 2^4000220231 is an apocalyptic number.

4000220231 is a deficient number, since it is larger than the sum of its proper divisors (571460041).

4000220231 is an equidigital number, since it uses as much as digits as its factorization.

4000220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571460040.

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

The square root of 4000220231 is about 63247.2942583317. The cubic root of 4000220231 is about 1587.4301843436.

Adding to 4000220231 its reverse (1320220004), we get a palindrome (5320440235).

The spelling of 4000220231 in words is "four billion, two hundred twenty thousand, two hundred thirty-one".