43254352221 has 8 divisors (see below), whose sum is σ = 57676740480. Its totient is φ = 28834099392.

The previous prime is 43254352217. The next prime is 43254352243. The reversal of 43254352221 is 12225345234.

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

It is not a de Polignac number, because 43254352221 - 2² = 43254352217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43254352261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485980 + ... + 568053.

It is an arithmetic number, because the mean of its divisors is an integer number (7209592560).

Almost surely, 2^43254352221 is an apocalyptic number.

It is an amenable number.

43254352221 is a deficient number, since it is larger than the sum of its proper divisors (14422388259).

43254352221 is a wasteful number, since it uses less digits than its factorization.

43254352221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067715.

The product of its digits is 57600, while the sum is 33.

Adding to 43254352221 its reverse (12225345234), we get a palindrome (55479697455).

The spelling of 43254352221 in words is "forty-three billion, two hundred fifty-four million, three hundred fifty-two thousand, two hundred twenty-one".