21320032122232 has 16 divisors (see below), whose sum is σ = 40652603623800. Its totient is φ = 10479337822560.

The previous prime is 21320032122227. The next prime is 21320032122269. The reversal of 21320032122232 is 23222123002312.

It is a junction number, because it is equal to n+sod(n) for n = 21320032122197 and 21320032122206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22584779319 + ... + 22584780262.

Almost surely, 2^{21320032122232} is an apocalyptic number.

It is an amenable number.

21320032122232 is a deficient number, since it is larger than the sum of its proper divisors (19332571501568).

21320032122232 is a wasteful number, since it uses less digits than its factorization.

21320032122232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45169559646 (or 45169559642 counting only the distinct ones).

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

Adding to 21320032122232 its reverse (23222123002312), we get a palindrome (44542155124544).

The spelling of 21320032122232 in words is "twenty-one trillion, three hundred twenty billion, thirty-two million, one hundred twenty-two thousand, two hundred thirty-two".