21200112332 has 24 divisors (see below), whose sum is σ = 42406936320. Its totient is φ = 9084324240.

The previous prime is 21200112223. The next prime is 21200112341. The reversal of 21200112332 is 23321100212.

It is a self number, because there is not a number n which added to its sum of digits gives 21200112332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130769 + ... + 243927.

It is an arithmetic number, because the mean of its divisors is an integer number (1766955680).

Almost surely, 2^21200112332 is an apocalyptic number.

It is an amenable number.

21200112332 is an abundant number, since it is smaller than the sum of its proper divisors (21206823988).

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

21200112332 is a wasteful number, since it uses less digits than its factorization.

21200112332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119861 (or 119859 counting only the distinct ones).

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

Adding to 21200112332 its reverse (23321100212), we get a palindrome (44521212544).

The spelling of 21200112332 in words is "twenty-one billion, two hundred million, one hundred twelve thousand, three hundred thirty-two".