21100120033132 has 12 divisors (see below), whose sum is σ = 42200240066320. Its totient is φ = 9042908585616.

The previous prime is 21100120033127. The next prime is 21100120033169. The reversal of 21100120033132 is 23133002100112.

21100120033132 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376787857707 + ... + 376787857762.

Almost surely, 2^{21100120033132} is an apocalyptic number.

It is an amenable number.

21100120033132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21100120033132 is a wasteful number, since it uses less digits than its factorization.

21100120033132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753575715480 (or 753575715478 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21100120033132 its reverse (23133002100112), we get a palindrome (44233122133244).

The spelling of 21100120033132 in words is "twenty-one trillion, one hundred billion, one hundred twenty million, thirty-three thousand, one hundred thirty-two".