100221131303101 has 4 divisors (see below), whose sum is σ = 102665549139804. Its totient is φ = 97776713466400.

The previous prime is 100221131303057. The next prime is 100221131303123. The reversal of 100221131303101 is 101303131122001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4491559648900 + 95729571654201 = 2119330^2 + 9784149^2 .

It is a cyclic number.

It is not a de Polignac number, because 100221131303101 - 2²¹ = 100221129205949 is a prime.

It is a super-2 number, since 2×100221131303101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221131303401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222208918290 + ... + 1222208918371.

It is an arithmetic number, because the mean of its divisors is an integer number (25666387284951).

Almost surely, 2^{100221131303101} is an apocalyptic number.

It is an amenable number.

100221131303101 is a deficient number, since it is larger than the sum of its proper divisors (2444417836703).

100221131303101 is an equidigital number, since it uses as much as digits as its factorization.

100221131303101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444417836702.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 100221131303101 its reverse (101303131122001), we get a palindrome (201524262425102).

The spelling of 100221131303101 in words is "one hundred trillion, two hundred twenty-one billion, one hundred thirty-one million, three hundred three thousand, one hundred one".