111020011221101 has 4 divisors (see below), whose sum is σ = 111021150815100. Its totient is φ = 111018871627104.

The previous prime is 111020011221047. The next prime is 111020011221107. The reversal of 111020011221101 is 101122110020111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70071146464201 + 40948864756900 = 8370851^2 + 6399130^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020011221101 - 2¹⁰ = 111020011220077 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 (111020011221107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569650856 + ... + 569845713.

It is an arithmetic number, because the mean of its divisors is an integer number (27755287703775).

Almost surely, 2^{111020011221101} is an apocalyptic number.

It is an amenable number.

111020011221101 is a deficient number, since it is larger than the sum of its proper divisors (1139593999).

111020011221101 is an equidigital number, since it uses as much as digits as its factorization.

111020011221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139593998.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111020011221101 its reverse (101122110020111), we get a palindrome (212142121241212).

The spelling of 111020011221101 in words is "one hundred eleven trillion, twenty billion, eleven million, two hundred twenty-one thousand, one hundred one".