111120021110101 has 2 divisors, whose sum is σ = 111120021110102. Its totient is φ = 111120021110100.

The previous prime is 111120021110089. The next prime is 111120021110149. The reversal of 111120021110101 is 101011120021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108759327143076 + 2360693967025 = 10428774^2 + 1536455^2 .

It is an emirp because it is prime and its reverse (101011120021111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111120021110101 - 2¹¹ = 111120021108053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111120021110401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560010555050 + 55560010555051.

It is an arithmetic number, because the mean of its divisors is an integer number (55560010555051).

Almost surely, 2^{111120021110101} is an apocalyptic number.

It is an amenable number.

111120021110101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120021110101 is an equidigital number, since it uses as much as digits as its factorization.

111120021110101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111120021110101 its reverse (101011120021111), we get a palindrome (212131141131212).

The spelling of 111120021110101 in words is "one hundred eleven trillion, one hundred twenty billion, twenty-one million, one hundred ten thousand, one hundred one".