111222210111101 has 8 divisors (see below), whose sum is σ = 111243075955704. Its totient is φ = 111201345964800.

The previous prime is 111222210111083. The next prime is 111222210111119. The reversal of 111222210111101 is 101111012222111.

It is an interprime number because it is at equal distance from previous prime (111222210111083) and next prime (111222210111119).

It can be written as a sum of positive squares in 4 ways, for example, as 34822391102500 + 76399819008601 = 5901050^2 + 8740699^2 .

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 111222210111101 - 2¹⁴ = 111222210094717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111222210111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222210111151) 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, 134567561 + ... + 135391553.

It is an arithmetic number, because the mean of its divisors is an integer number (13905384494463).

Almost surely, 2^{111222210111101} is an apocalyptic number.

It is an amenable number.

111222210111101 is a deficient number, since it is larger than the sum of its proper divisors (20865844603).

111222210111101 is an equidigital number, since it uses as much as digits as its factorization.

111222210111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849151.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111222210111101 its reverse (101111012222111), we get a palindrome (212333222333212).

The spelling of 111222210111101 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred ten million, one hundred eleven thousand, one hundred one".