111111122222101 has 8 divisors (see below), whose sum is σ = 111452280690464. Its totient is φ = 110770486603920.

The previous prime is 111111122222033. The next prime is 111111122222183. The reversal of 111111122222101 is 101222221111111.

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 111111122222101 - 2¹¹ = 111111122220053 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 (111111122232101) 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, 130286871 + ... + 131136916.

It is an arithmetic number, because the mean of its divisors is an integer number (13931535086308).

Almost surely, 2^{111111122222101} is an apocalyptic number.

It is an amenable number.

111111122222101 is a deficient number, since it is larger than the sum of its proper divisors (341158468363).

111111122222101 is an equidigital number, since it uses as much as digits as its factorization.

111111122222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261425091.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111111122222101 its reverse (101222221111111), we get a palindrome (212333343333212).

The spelling of 111111122222101 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred one".