40144121322 has 32 divisors (see below), whose sum is σ = 80475612480. Its totient is φ = 13350184320.

The previous prime is 40144121239. The next prime is 40144121323. The reversal of 40144121322 is 22312144104.

It is a super-2 number, since 2×40144121322² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40144121292 and 40144121301.

It is not an unprimeable number, because it can be changed into a prime (40144121323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5123704 + ... + 5131532.

It is an arithmetic number, because the mean of its divisors is an integer number (2514862890).

Almost surely, 2^40144121322 is an apocalyptic number.

40144121322 is an abundant number, since it is smaller than the sum of its proper divisors (40331491158).

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

40144121322 is a wasteful number, since it uses less digits than its factorization.

40144121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9718.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40144121322 its reverse (22312144104), we get a palindrome (62456265426).

The spelling of 40144121322 in words is "forty billion, one hundred forty-four million, one hundred twenty-one thousand, three hundred twenty-two".