111210112010101 has 4 divisors (see below), whose sum is σ = 119764736010892. Its totient is φ = 102655488009312.

The previous prime is 111210112010059. The next prime is 111210112010113. The reversal of 111210112010101 is 101010211012111.

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 13663180747876 + 97546931262225 = 3696374^2 + 9876585^2 .

It is a cyclic number.

It is not a de Polignac number, because 111210112010101 - 2⁷ = 111210112009973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 8554624000777 = 111210112010101 / (1 + 1 + 1 + 2 + 1 + 0 + 1 + 1 + 2 + 0 + 1 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111210112010161) 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, 4277312000376 + ... + 4277312000401.

It is an arithmetic number, because the mean of its divisors is an integer number (29941184002723).

Almost surely, 2^{111210112010101} is an apocalyptic number.

It is an amenable number.

111210112010101 is a deficient number, since it is larger than the sum of its proper divisors (8554624000791).

111210112010101 is an equidigital number, since it uses as much as digits as its factorization.

111210112010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554624000790.

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

Adding to 111210112010101 its reverse (101010211012111), we get a palindrome (212220323022212).

The spelling of 111210112010101 in words is "one hundred eleven trillion, two hundred ten billion, one hundred twelve million, ten thousand, one hundred one".