221113101091 has 8 divisors (see below), whose sum is σ = 223114014720. Its totient is φ = 219112962432.

The previous prime is 221113101067. The next prime is 221113101101. The reversal of 221113101091 is 190101311122.

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 221113101091 - 2⁷ = 221113100963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221113101031) 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, 387321 + ... + 769573.

It is an arithmetic number, because the mean of its divisors is an integer number (27889251840).

Almost surely, 2^221113101091 is an apocalyptic number.

221113101091 is a deficient number, since it is larger than the sum of its proper divisors (2000913629).

221113101091 is a wasteful number, since it uses less digits than its factorization.

221113101091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387485.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 221113101091 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred one thousand, ninety-one".