111200012101 has 8 divisors (see below), whose sum is σ = 112760020440. Its totient is φ = 109640996352.

The previous prime is 111200012081. The next prime is 111200012141. The reversal of 111200012101 is 101210002111.

It can be written as a sum of positive squares in 4 ways, for example, as 74384380225 + 36815631876 = 272735^2 + 191874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111200012101 - 2¹³ = 111200003909 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 (111200012141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21070 + ... + 472063.

It is an arithmetic number, because the mean of its divisors is an integer number (14095002555).

Almost surely, 2^111200012101 is an apocalyptic number.

It is an amenable number.

111200012101 is a deficient number, since it is larger than the sum of its proper divisors (1560008339).

111200012101 is an equidigital number, since it uses as much as digits as its factorization.

111200012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496295.

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

Adding to 111200012101 its reverse (101210002111), we get a palindrome (212410014212).

The spelling of 111200012101 in words is "one hundred eleven billion, two hundred million, twelve thousand, one hundred one".