43035351442221 has 16 divisors (see below), whose sum is σ = 60400888064000. Its totient is φ = 27180044298288.

The previous prime is 43035351442217. The next prime is 43035351442243. The reversal of 43035351442221 is 12224415353034.

It is a happy number.

It is not a de Polignac number, because 43035351442221 - 2² = 43035351442217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43035351442221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43035351449221) 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, 6620130 + ... + 11397228.

It is an arithmetic number, because the mean of its divisors is an integer number (3775055504000).

Almost surely, 2^{43035351442221} is an apocalyptic number.

It is an amenable number.

43035351442221 is a deficient number, since it is larger than the sum of its proper divisors (17365536621779).

43035351442221 is a wasteful number, since it uses less digits than its factorization.

43035351442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935168.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 43035351442221 its reverse (12224415353034), we get a palindrome (55259766795255).

The spelling of 43035351442221 in words is "forty-three trillion, thirty-five billion, three hundred fifty-one million, four hundred forty-two thousand, two hundred twenty-one".