21100022332 has 12 divisors (see below), whose sum is σ = 36928346056. Its totient is φ = 10549066320.

The previous prime is 21100022309. The next prime is 21100022357. The reversal of 21100022332 is 23322000112.

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 3 ways as a sum of consecutive naturals, for example, 184719 + ... + 276262.

Almost surely, 2^21100022332 is an apocalyptic number.

It is an amenable number.

21100022332 is a deficient number, since it is larger than the sum of its proper divisors (15828323724).

21100022332 is a wasteful number, since it uses less digits than its factorization.

21100022332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472428 (or 472426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21100022332 its reverse (23322000112), we get a palindrome (44422022444).

It can be divided in two parts, 211000 and 22332, that added together give a palindrome (233332).

The spelling of 21100022332 in words is "twenty-one billion, one hundred million, twenty-two thousand, three hundred thirty-two".