111120220110101 has 4 divisors (see below), whose sum is σ = 111120422705292. Its totient is φ = 111120017514912.

The previous prime is 111120220110089. The next prime is 111120220110103. The reversal of 111120220110101 is 101011022021111.

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 98671919023876 + 12448301086225 = 9933374^2 + 3528215^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120220110101 - 2³⁸ = 110845342203157 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 (111120220110103) 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, 100472630 + ... + 101572583.

It is an arithmetic number, because the mean of its divisors is an integer number (27780105676323).

Almost surely, 2^{111120220110101} is an apocalyptic number.

It is an amenable number.

111120220110101 is a deficient number, since it is larger than the sum of its proper divisors (202595191).

111120220110101 is an equidigital number, since it uses as much as digits as its factorization.

111120220110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202595190.

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

Adding to 111120220110101 its reverse (101011022021111), we get a palindrome (212131242131212).

The spelling of 111120220110101 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty million, one hundred ten thousand, one hundred one".