111200221220009 has 4 divisors (see below), whose sum is σ = 111204776203716. Its totient is φ = 111195666236304.

The previous prime is 111200221219981. The next prime is 111200221220041. The reversal of 111200221220009 is 900022122002111.

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 79086782955625 + 32113438264384 = 8893075^2 + 5666872^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200221220009 - 2⁸ = 111200221219753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111200221220089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277455234 + ... + 2277504059.

It is an arithmetic number, because the mean of its divisors is an integer number (27801194050929).

Almost surely, 2^{111200221220009} is an apocalyptic number.

It is an amenable number.

111200221220009 is a deficient number, since it is larger than the sum of its proper divisors (4554983707).

111200221220009 is an equidigital number, since it uses as much as digits as its factorization.

111200221220009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554983706.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 111200221220009 in words is "one hundred eleven trillion, two hundred billion, two hundred twenty-one million, two hundred twenty thousand, nine".