100221001023 has 32 divisors (see below), whose sum is σ = 162402992640. Its totient is φ = 54134317440.

The previous prime is 100221001009. The next prime is 100221001031. The reversal of 100221001023 is 320100122001.

It is not a de Polignac number, because 100221001023 - 2⁵ = 100221000991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221001003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4015411 + ... + 4040292.

It is an arithmetic number, because the mean of its divisors is an integer number (5075093520).

Almost surely, 2^100221001023 is an apocalyptic number.

100221001023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100221001023 is a deficient number, since it is larger than the sum of its proper divisors (62181991617).

100221001023 is a wasteful number, since it uses less digits than its factorization.

100221001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055759.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100221001023 its reverse (320100122001), we get a palindrome (420321123024).

The spelling of 100221001023 in words is "one hundred billion, two hundred twenty-one million, one thousand, twenty-three".