40221232131 has 16 divisors (see below), whose sum is σ = 57267164160. Its totient is φ = 25054380960.

The previous prime is 40221232081. The next prime is 40221232147. The reversal of 40221232131 is 13123212204.

40221232131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40221232131 - 2⁷ = 40221232003 is a prime.

It is a super-2 number, since 2×40221232131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40221232098 and 40221232107.

It is not an unprimeable number, because it can be changed into a prime (40221232171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7453965 + ... + 7459358.

It is an arithmetic number, because the mean of its divisors is an integer number (3579197760).

Almost surely, 2^40221232131 is an apocalyptic number.

40221232131 is a deficient number, since it is larger than the sum of its proper divisors (17045932029).

40221232131 is a wasteful number, since it uses less digits than its factorization.

40221232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14913386.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 40221232131 its reverse (13123212204), we get a palindrome (53344444335).

The spelling of 40221232131 in words is "forty billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred thirty-one".