21200100332 has 12 divisors (see below), whose sum is σ = 37123244760. Its totient is φ = 10593458976.

The previous prime is 21200100319. The next prime is 21200100343. The reversal of 21200100332 is 23300100212.

It is a happy 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, 1640558 + ... + 1653429.

It is an arithmetic number, because the mean of its divisors is an integer number (3093603730).

Almost surely, 2^21200100332 is an apocalyptic number.

It is an amenable number.

21200100332 is a deficient number, since it is larger than the sum of its proper divisors (15923144428).

21200100332 is a wasteful number, since it uses less digits than its factorization.

21200100332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295600 (or 3295598 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21200100332 its reverse (23300100212), we get a palindrome (44500200544).

The spelling of 21200100332 in words is "twenty-one billion, two hundred million, one hundred thousand, three hundred thirty-two".