100020021101 has 64 divisors (see below), whose sum is σ = 142425755136. Its totient is φ = 67599360000.

The previous prime is 100020021089. The next prime is 100020021109. The reversal of 100020021101 is 101120020001.

It is a cyclic number.

It is not a de Polignac number, because 100020021101 - 2⁶ = 100020021037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020021109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11107601 + ... + 11116601.

It is an arithmetic number, because the mean of its divisors is an integer number (2225402424).

Almost surely, 2^100020021101 is an apocalyptic number.

100020021101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100020021101 is a deficient number, since it is larger than the sum of its proper divisors (42405734035).

100020021101 is a wasteful number, since it uses less digits than its factorization.

100020021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100020021101 its reverse (101120020001), we get a palindrome (201140041102).

The spelling of 100020021101 in words is "one hundred billion, twenty million, twenty-one thousand, one hundred one".