40131223122 has 64 divisors (see below), whose sum is σ = 84979440000. Its totient is φ = 12599359488.

The previous prime is 40131223109. The next prime is 40131223129. The reversal of 40131223122 is 22132213104.

It is a super-2 number, since 2×40131223122² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40131223129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15475458 + ... + 15478050.

It is an arithmetic number, because the mean of its divisors is an integer number (1327803750).

Almost surely, 2^40131223122 is an apocalyptic number.

40131223122 is an abundant number, since it is smaller than the sum of its proper divisors (44848216878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40131223122 is a wasteful number, since it uses less digits than its factorization.

40131223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355.

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

Adding to 40131223122 its reverse (22132213104), we get a palindrome (62263436226).

The spelling of 40131223122 in words is "forty billion, one hundred thirty-one million, two hundred twenty-three thousand, one hundred twenty-two".