43221013021241 has 24 divisors (see below), whose sum is σ = 48239826856704. Its totient is φ = 38687513480000.

The previous prime is 43221013021223. The next prime is 43221013021253. The reversal of 43221013021241 is 14212031012234.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-43221013021241 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 43221013021241.

It is not an unprimeable number, because it can be changed into a prime (43221013081241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3232256 + ... + 9843246.

It is an arithmetic number, because the mean of its divisors is an integer number (2009992785696).

Almost surely, 2^{43221013021241} is an apocalyptic number.

It is an amenable number.

43221013021241 is a deficient number, since it is larger than the sum of its proper divisors (5018813835463).

43221013021241 is a wasteful number, since it uses less digits than its factorization.

43221013021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611845 (or 6611834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 43221013021241 its reverse (14212031012234), we get a palindrome (57433044033475).

The spelling of 43221013021241 in words is "forty-three trillion, two hundred twenty-one billion, thirteen million, twenty-one thousand, two hundred forty-one".