111200220231 has 16 divisors (see below), whose sum is σ = 150555946464. Its totient is φ = 72996747264.

The previous prime is 111200220199. The next prime is 111200220289. The reversal of 111200220231 is 132022002111.

It is not a de Polignac number, because 111200220231 - 2⁵ = 111200220199 is a prime.

It is a super-2 number, since 2×111200220231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111200220231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200220731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912550 + ... + 1027203.

It is an arithmetic number, because the mean of its divisors is an integer number (9409746654).

Almost surely, 2^111200220231 is an apocalyptic number.

111200220231 is a deficient number, since it is larger than the sum of its proper divisors (39355726233).

111200220231 is a wasteful number, since it uses less digits than its factorization.

111200220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940050.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 111200220231 its reverse (132022002111), we get a palindrome (243222222342).

The spelling of 111200220231 in words is "one hundred eleven billion, two hundred million, two hundred twenty thousand, two hundred thirty-one".