43215220033 has 4 divisors (see below), whose sum is σ = 43339759920. Its totient is φ = 43090680148.

The previous prime is 43215220019. The next prime is 43215220079. The reversal of 43215220033 is 33002251234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43215220033 - 2¹³ = 43215211841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43215220093) 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 3 ways as a sum of consecutive naturals, for example, 62269423 + ... + 62270116.

It is an arithmetic number, because the mean of its divisors is an integer number (10834939980).

Almost surely, 2^43215220033 is an apocalyptic number.

It is an amenable number.

43215220033 is a deficient number, since it is larger than the sum of its proper divisors (124539887).

43215220033 is a wasteful number, since it uses less digits than its factorization.

43215220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124539886.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 43215220033 its reverse (33002251234), we get a palindrome (76217471267).

The spelling of 43215220033 in words is "forty-three billion, two hundred fifteen million, two hundred twenty thousand, thirty-three".