43212101 has 8 divisors (see below), whose sum is σ = 45205440. Its totient is φ = 41228352.

The previous prime is 43212097. The next prime is 43212139. The reversal of 43212101 is 10121234.

43212101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

43212101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 43212101 - 2² = 43212097 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43212151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7790 + ... + 12128.

It is an arithmetic number, because the mean of its divisors is an integer number (5650680).

Almost surely, 2^43212101 is an apocalyptic number.

It is an amenable number.

43212101 is a deficient number, since it is larger than the sum of its proper divisors (1993339).

43212101 is a wasteful number, since it uses less digits than its factorization.

43212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 43212101 is about 6573.5911798651. The cubic root of 43212101 is about 350.9148880627.

Adding to 43212101 its reverse (10121234), we get a palindrome (53333335).

The spelling of 43212101 in words is "forty-three million, two hundred twelve thousand, one hundred one".