21233000020100 has 72 divisors (see below), whose sum is σ = 50406694577568. Its totient is φ = 7699217996800.

The previous prime is 21233000020039. The next prime is 21233000020129. The reversal of 21233000020100 is 102000033212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26952674 + ... + 27729273.

It is an arithmetic number, because the mean of its divisors is an integer number (700092980244).

Almost surely, 2^{21233000020100} is an apocalyptic number.

21233000020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233000020100 is an abundant number, since it is smaller than the sum of its proper divisors (29173694557468).

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

21233000020100 is a wasteful number, since it uses less digits than its factorization.

21233000020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54682325 (or 54682318 counting only the distinct ones).

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

Adding to 21233000020100 its reverse (102000033212), we get a palindrome (21335000053312).

The spelling of 21233000020100 in words is "twenty-one trillion, two hundred thirty-three billion, twenty thousand, one hundred".