32313002232221 has 4 divisors (see below), whose sum is σ = 32316932784444. Its totient is φ = 32309071680000.

The previous prime is 32313002232211. The next prime is 32313002232223. The reversal of 32313002232221 is 12223220031323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29549943792196 + 2763058440025 = 5435986^2 + 1662245^2 .

It is a cyclic number.

It is not a de Polignac number, because 32313002232221 - 2¹⁸ = 32313001970077 is a prime.

It is a super-2 number, since 2×32313002232221² (a number of 28 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 (32313002232223) 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, 1965263780 + ... + 1965280221.

It is an arithmetic number, because the mean of its divisors is an integer number (8079233196111).

Almost surely, 2^{32313002232221} is an apocalyptic number.

It is an amenable number.

32313002232221 is a deficient number, since it is larger than the sum of its proper divisors (3930552223).

32313002232221 is an equidigital number, since it uses as much as digits as its factorization.

32313002232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930552222.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 32313002232221 its reverse (12223220031323), we get a palindrome (44536222263544).

The spelling of 32313002232221 in words is "thirty-two trillion, three hundred thirteen billion, two million, two hundred thirty-two thousand, two hundred twenty-one".