40221244231 has 12 divisors (see below), whose sum is σ = 49540213008. Its totient is φ = 32447389632.

The previous prime is 40221244171. The next prime is 40221244243. The reversal of 40221244231 is 13244212204.

It is not a de Polignac number, because 40221244231 - 2²⁵ = 40187689799 is a prime.

It is a super-2 number, since 2×40221244231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40221244196 and 40221244205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221244031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24141571 + ... + 24143236.

It is an arithmetic number, because the mean of its divisors is an integer number (4128351084).

Almost surely, 2^40221244231 is an apocalyptic number.

40221244231 is a deficient number, since it is larger than the sum of its proper divisors (9318968777).

40221244231 is a wasteful number, since it uses less digits than its factorization.

40221244231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48284838 (or 48284831 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40221244231 its reverse (13244212204), we get a palindrome (53465456435).

The spelling of 40221244231 in words is "forty billion, two hundred twenty-one million, two hundred forty-four thousand, two hundred thirty-one".