111200212231 has 4 divisors (see below), whose sum is σ = 117052855000. Its totient is φ = 105347569464.

The previous prime is 111200212199. The next prime is 111200212237. The reversal of 111200212231 is 132212002111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132212002111 = 7 ⋅18887428873.

It is a cyclic number.

It is not a de Polignac number, because 111200212231 - 2⁵ = 111200212199 is a prime.

It is a super-2 number, since 2×111200212231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200212237) 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, 2926321356 + ... + 2926321393.

It is an arithmetic number, because the mean of its divisors is an integer number (29263213750).

Almost surely, 2^111200212231 is an apocalyptic number.

111200212231 is a deficient number, since it is larger than the sum of its proper divisors (5852642769).

111200212231 is an equidigital number, since it uses as much as digits as its factorization.

111200212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852642768.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111200212231 its reverse (132212002111), we get a palindrome (243412214342).

The spelling of 111200212231 in words is "one hundred eleven billion, two hundred million, two hundred twelve thousand, two hundred thirty-one".