100321221001 has 8 divisors (see below), whose sum is σ = 100831500864. Its totient is φ = 99812038800.

The previous prime is 100321220999. The next prime is 100321221043. The reversal of 100321221001 is 100122123001.

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

It is a cyclic number.

It is not a de Polignac number, because 100321221001 - 2¹ = 100321220999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100321221101) 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, 90850 + ... + 457051.

It is an arithmetic number, because the mean of its divisors is an integer number (12603937608).

Almost surely, 2^100321221001 is an apocalyptic number.

It is an amenable number.

100321221001 is a deficient number, since it is larger than the sum of its proper divisors (510279863).

100321221001 is an equidigital number, since it uses as much as digits as its factorization.

100321221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548831.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100321221001 its reverse (100122123001), we get a palindrome (200443344002).

The spelling of 100321221001 in words is "one hundred billion, three hundred twenty-one million, two hundred twenty-one thousand, one".