100021001101 has 8 divisors (see below), whose sum is σ = 114316697664. Its totient is φ = 85727050080.

The previous prime is 100021001089. The next prime is 100021001111. The reversal of 100021001101 is 101100120001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100021001101 - 2¹⁹ = 100020476813 is a prime.

It is a super-2 number, since 2×100021001101² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021001111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311200 + ... + 544873.

It is an arithmetic number, because the mean of its divisors is an integer number (14289587208).

Almost surely, 2^100021001101 is an apocalyptic number.

It is an amenable number.

100021001101 is a deficient number, since it is larger than the sum of its proper divisors (14295696563).

100021001101 is an equidigital number, since it uses as much as digits as its factorization.

100021001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872771.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 100021001101 its reverse (101100120001), we get a palindrome (201121121102).

The spelling of 100021001101 in words is "one hundred billion, twenty-one million, one thousand, one hundred one".