100221010110020 has 24 divisors (see below), whose sum is σ = 210466038484800. Its totient is φ = 40088038852832.

The previous prime is 100221010109999. The next prime is 100221010110047. The reversal of 100221010110020 is 20011010122001.

It is a junction number, because it is equal to n+sod(n) for n = 100221010109983 and 100221010110010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20568650 + ... + 24970209.

It is an arithmetic number, because the mean of its divisors is an integer number (8769418270200).

Almost surely, 2^{100221010110020} is an apocalyptic number.

100221010110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221010110020 is an abundant number, since it is smaller than the sum of its proper divisors (110245028374780).

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

100221010110020 is a wasteful number, since it uses less digits than its factorization.

100221010110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45648907 (or 45648905 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100221010110020 its reverse (20011010122001), we get a palindrome (120232020232021).

The spelling of 100221010110020 in words is "one hundred trillion, two hundred twenty-one billion, ten million, one hundred ten thousand, twenty".