32313440221 has 4 divisors (see below), whose sum is σ = 32314543200. Its totient is φ = 32312337244.

The previous prime is 32313440213. The next prime is 32313440261. The reversal of 32313440221 is 12204431323.

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 32313440221 - 2³ = 32313440213 is a prime.

It is a super-2 number, since 2×32313440221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32313440261) 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, 506311 + ... + 566548.

It is an arithmetic number, because the mean of its divisors is an integer number (8078635800).

Almost surely, 2^32313440221 is an apocalyptic number.

It is an amenable number.

32313440221 is a deficient number, since it is larger than the sum of its proper divisors (1102979).

32313440221 is a wasteful number, since it uses less digits than its factorization.

32313440221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102978.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 32313440221 its reverse (12204431323), we get a palindrome (44517871544).

The spelling of 32313440221 in words is "thirty-two billion, three hundred thirteen million, four hundred forty thousand, two hundred twenty-one".