21630114421100 has 18 divisors (see below), whose sum is σ = 46937348294004. Its totient is φ = 8652045768400.

The previous prime is 21630114421081. The next prime is 21630114421121. The reversal of 21630114421100 is 112441103612.

It is a self number, because there is not a number n which added to its sum of digits gives 21630114421100.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108150572006 + ... + 108150572205.

It is an arithmetic number, because the mean of its divisors is an integer number (2607630460778).

Almost surely, 2^{21630114421100} is an apocalyptic number.

21630114421100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21630114421100 is an abundant number, since it is smaller than the sum of its proper divisors (25307233872904).

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

21630114421100 is a wasteful number, since it uses less digits than its factorization.

21630114421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216301144225 (or 216301144218 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 21630114421100 its reverse (112441103612), we get a palindrome (21742555524712).

The spelling of 21630114421100 in words is "twenty-one trillion, six hundred thirty billion, one hundred fourteen million, four hundred twenty-one thousand, one hundred".