21102110132 has 48 divisors (see below), whose sum is σ = 39405864960. Its totient is φ = 9853248000.

The previous prime is 21102110123. The next prime is 21102110171. The reversal of 21102110132 is 23101120112.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5699882 + ... + 5703582.

It is an arithmetic number, because the mean of its divisors is an integer number (820955520).

Almost surely, 2^21102110132 is an apocalyptic number.

It is an amenable number.

21102110132 is a deficient number, since it is larger than the sum of its proper divisors (18303754828).

21102110132 is a wasteful number, since it uses less digits than its factorization.

21102110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352 (or 4350 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21102110132 its reverse (23101120112), we get a palindrome (44203230244).

The spelling of 21102110132 in words is "twenty-one billion, one hundred two million, one hundred ten thousand, one hundred thirty-two".