111200220109 has 4 divisors (see below), whose sum is σ = 121309331040. Its totient is φ = 101091109180.

The previous prime is 111200220091. The next prime is 111200220127. The reversal of 111200220109 is 901022002111.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (111200220091) and next prime (111200220127).

It is a cyclic number.

It is not a de Polignac number, because 111200220109 - 2¹¹ = 111200218061 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 (111200220199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5054555449 + ... + 5054555470.

It is an arithmetic number, because the mean of its divisors is an integer number (30327332760).

Almost surely, 2^111200220109 is an apocalyptic number.

It is an amenable number.

111200220109 is a deficient number, since it is larger than the sum of its proper divisors (10109110931).

111200220109 is a wasteful number, since it uses less digits than its factorization.

111200220109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109110930.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 111200220109 in words is "one hundred eleven billion, two hundred million, two hundred twenty thousand, one hundred nine".