100221101191 has 8 divisors (see below), whose sum is σ = 100867454064. Its totient is φ = 99574849920.

The previous prime is 100221101179. The next prime is 100221101237. The reversal of 100221101191 is 191101122001.

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 100221101191 - 2⁵ = 100221101159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221141191) 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, 3696876 + ... + 3723886.

It is an arithmetic number, because the mean of its divisors is an integer number (12608431758).

Almost surely, 2^100221101191 is an apocalyptic number.

100221101191 is a deficient number, since it is larger than the sum of its proper divisors (646352873).

100221101191 is a wasteful number, since it uses less digits than its factorization.

100221101191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50801.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 100221101191 its reverse (191101122001), we get a palindrome (291322223192).

The spelling of 100221101191 in words is "one hundred billion, two hundred twenty-one million, one hundred one thousand, one hundred ninety-one".