43216422233 has 4 divisors (see below), whose sum is σ = 43221439140. Its totient is φ = 43211405328.

The previous prime is 43216422163. The next prime is 43216422251. The reversal of 43216422233 is 33222461234.

43216422233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33222461234 = 2 ⋅16611230617.

It can be written as a sum of positive squares in 2 ways, for example, as 25005729424 + 18210692809 = 158132^2 + 134947^2 .

It is a cyclic number.

It is not a de Polignac number, because 43216422233 - 2¹⁴ = 43216405849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43216422233.

It is not an unprimeable number, because it can be changed into a prime (43216422533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2495510 + ... + 2512767.

It is an arithmetic number, because the mean of its divisors is an integer number (10805359785).

Almost surely, 2^43216422233 is an apocalyptic number.

It is an amenable number.

43216422233 is a deficient number, since it is larger than the sum of its proper divisors (5016907).

43216422233 is an equidigital number, since it uses as much as digits as its factorization.

43216422233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016906.

The product of its digits is 41472, while the sum is 32.

Adding to 43216422233 its reverse (33222461234), we get a palindrome (76438883467).

The spelling of 43216422233 in words is "forty-three billion, two hundred sixteen million, four hundred twenty-two thousand, two hundred thirty-three".