4040221231 has 4 divisors (see below), whose sum is σ = 4041636264. Its totient is φ = 4038806200.

The previous prime is 4040221183. The next prime is 4040221259. The reversal of 4040221231 is 1321220404.

4040221231 is digitally balanced in base 2, 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 4040221231 - 2⁹ = 4040220719 is a prime.

It is a super-2 number, since 2×4040221231² = 32646775190846310722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4040221199 and 4040221208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040221261) 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, 703225 + ... + 708946.

It is an arithmetic number, because the mean of its divisors is an integer number (1010409066).

Almost surely, 2^4040221231 is an apocalyptic number.

4040221231 is a deficient number, since it is larger than the sum of its proper divisors (1415033).

4040221231 is a wasteful number, since it uses less digits than its factorization.

4040221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415032.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4040221231 is about 63562.7346092032. The cubic root of 4040221231 is about 1592.7039195310.

Adding to 4040221231 its reverse (1321220404), we get a palindrome (5361441635).

The spelling of 4040221231 in words is "four billion, forty million, two hundred twenty-one thousand, two hundred thirty-one".