32112233521 has 4 divisors (see below), whose sum is σ = 34001188452. Its totient is φ = 30223278592.

The previous prime is 32112233497. The next prime is 32112233563. The reversal of 32112233521 is 12533221123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12533221123 = 19 ⋅659643217.

It can be written as a sum of positive squares in 2 ways, for example, as 29246130225 + 2866103296 = 171015^2 + 53536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32112233521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32112233821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944477440 + ... + 944477473.

It is an arithmetic number, because the mean of its divisors is an integer number (8500297113).

Almost surely, 2^32112233521 is an apocalyptic number.

It is an amenable number.

32112233521 is a deficient number, since it is larger than the sum of its proper divisors (1888954931).

32112233521 is a wasteful number, since it uses less digits than its factorization.

32112233521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888954930.

The product of its digits is 2160, while the sum is 25.

Adding to 32112233521 its reverse (12533221123), we get a palindrome (44645454644).

The spelling of 32112233521 in words is "thirty-two billion, one hundred twelve million, two hundred thirty-three thousand, five hundred twenty-one".