21022103132 has 48 divisors (see below), whose sum is σ = 39744129600. Its totient is φ = 9699486720.

The previous prime is 21022103087. The next prime is 21022103153. The reversal of 21022103132 is 23130122012.

It is a self number, because there is not a number n which added to its sum of digits gives 21022103132.

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, 4450532 + ... + 4455252.

It is an arithmetic number, because the mean of its divisors is an integer number (828002700).

Almost surely, 2^21022103132 is an apocalyptic number.

It is an amenable number.

21022103132 is a deficient number, since it is larger than the sum of its proper divisors (18722026468).

21022103132 is a wasteful number, since it uses less digits than its factorization.

21022103132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446 (or 6444 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21022103132 its reverse (23130122012), we get a palindrome (44152225144).

The spelling of 21022103132 in words is "twenty-one billion, twenty-two million, one hundred three thousand, one hundred thirty-two".