111200120101 has 4 divisors (see below), whose sum is σ = 127085851552. Its totient is φ = 95314388652.

The previous prime is 111200120077. The next prime is 111200120111. The reversal of 111200120101 is 101021002111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111200120101 - 2¹⁷ = 111199989029 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 (111200120111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7942865715 + ... + 7942865728.

It is an arithmetic number, because the mean of its divisors is an integer number (31771462888).

Almost surely, 2^111200120101 is an apocalyptic number.

It is an amenable number.

111200120101 is a deficient number, since it is larger than the sum of its proper divisors (15885731451).

111200120101 is an equidigital number, since it uses as much as digits as its factorization.

111200120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15885731450.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111200120101 its reverse (101021002111), we get a palindrome (212221122212).

The spelling of 111200120101 in words is "one hundred eleven billion, two hundred million, one hundred twenty thousand, one hundred one".