43201243221 has 8 divisors (see below), whose sum is σ = 59459775744. Its totient is φ = 27871769760.

The previous prime is 43201243207. The next prime is 43201243243. The reversal of 43201243221 is 12234210234.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43201243221 - 2⁷ = 43201243093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43201243191 and 43201243200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43201245221) 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 7 ways as a sum of consecutive naturals, for example, 232264656 + ... + 232264841.

It is an arithmetic number, because the mean of its divisors is an integer number (7432471968).

Almost surely, 2^43201243221 is an apocalyptic number.

It is an amenable number.

43201243221 is a deficient number, since it is larger than the sum of its proper divisors (16258532523).

43201243221 is a wasteful number, since it uses less digits than its factorization.

43201243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464529531.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43201243221 its reverse (12234210234), we get a palindrome (55435453455).

The spelling of 43201243221 in words is "forty-three billion, two hundred one million, two hundred forty-three thousand, two hundred twenty-one".