221110201111101 has 8 divisors (see below), whose sum is σ = 294813748258560. Its totient is φ = 147406727352192.

The previous prime is 221110201111061. The next prime is 221110201111109. The reversal of 221110201111101 is 101111102011122.

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

It is not a de Polignac number, because 221110201111101 - 2¹⁷ = 221110200980029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110201111109) 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, 10883341 + ... + 23678418.

It is an arithmetic number, because the mean of its divisors is an integer number (36851718532320).

Almost surely, 2^{221110201111101} is an apocalyptic number.

It is an amenable number.

221110201111101 is a deficient number, since it is larger than the sum of its proper divisors (73703547147459).

221110201111101 is a wasteful number, since it uses less digits than its factorization.

221110201111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36694275.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 221110201111101 its reverse (101111102011122), we get a palindrome (322221303122223).

It can be divided in two parts, 221110 and 201111101, that added together give a triangular number (201332211 = T₂₀₀₆₆).

The spelling of 221110201111101 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred one million, one hundred eleven thousand, one hundred one".