21321322210132 has 24 divisors (see below), whose sum is σ = 42687960779520. Its totient is φ = 9127998870240.

The previous prime is 21321322210127. The next prime is 21321322210147. The reversal of 21321322210132 is 23101222312312.

It is a super-2 number, since 2×21321322210132² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21321322210097 and 21321322210106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404583532 + ... + 404636227.

It is an arithmetic number, because the mean of its divisors is an integer number (1778665032480).

Almost surely, 2^{21321322210132} is an apocalyptic number.

It is an amenable number.

21321322210132 is an abundant number, since it is smaller than the sum of its proper divisors (21366638569388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21321322210132 is a wasteful number, since it uses less digits than its factorization.

21321322210132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809220711 (or 809220709 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21321322210132 its reverse (23101222312312), we get a palindrome (44422544522444).

The spelling of 21321322210132 in words is "twenty-one trillion, three hundred twenty-one billion, three hundred twenty-two million, two hundred ten thousand, one hundred thirty-two".