111200102010101 has 4 divisors (see below), whose sum is σ = 119753956010892. Its totient is φ = 102646248009312.

The previous prime is 111200102010097. The next prime is 111200102010103. The reversal of 111200102010101 is 101010201002111.

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 30512532154225 + 80687569855876 = 5523815^2 + 8982626^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200102010101 - 2² = 111200102010097 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 (111200102010103) 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, 4276927000376 + ... + 4276927000401.

It is an arithmetic number, because the mean of its divisors is an integer number (29938489002723).

Almost surely, 2^{111200102010101} is an apocalyptic number.

It is an amenable number.

111200102010101 is a deficient number, since it is larger than the sum of its proper divisors (8553854000791).

111200102010101 is an equidigital number, since it uses as much as digits as its factorization.

111200102010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553854000790.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111200102010101 its reverse (101010201002111), we get a palindrome (212210303012212).

The spelling of 111200102010101 in words is "one hundred eleven trillion, two hundred billion, one hundred two million, ten thousand, one hundred one".