40013233443221 has 16 divisors (see below), whose sum is σ = 40090792439808. Its totient is φ = 39935774736000.

The previous prime is 40013233443199. The next prime is 40013233443301. The reversal of 40013233443221 is 12234433231004.

It is a cyclic number.

It is not a de Polignac number, because 40013233443221 - 2³⁸ = 39738355536277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013233443121) 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, 6405188720 + ... + 6405194966.

It is an arithmetic number, because the mean of its divisors is an integer number (2505674527488).

Almost surely, 2^{40013233443221} is an apocalyptic number.

It is an amenable number.

40013233443221 is a deficient number, since it is larger than the sum of its proper divisors (77558996587).

40013233443221 is a wasteful number, since it uses less digits than its factorization.

40013233443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 40013233443221 its reverse (12234433231004), we get a palindrome (52247666674225).

The spelling of 40013233443221 in words is "forty trillion, thirteen billion, two hundred thirty-three million, four hundred forty-three thousand, two hundred twenty-one".