111331222231 has 8 divisors (see below), whose sum is σ = 111543026400. Its totient is φ = 111119475840.

The previous prime is 111331222199. The next prime is 111331222237. The reversal of 111331222231 is 132222133111.

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 111331222231 - 2⁵ = 111331222199 is a prime.

It is a super-2 number, since 2×111331222231² (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 (111331222237) 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, 6796491 + ... + 6812851.

It is an arithmetic number, because the mean of its divisors is an integer number (13942878300).

Almost surely, 2^111331222231 is an apocalyptic number.

111331222231 is a deficient number, since it is larger than the sum of its proper divisors (211804169).

111331222231 is a wasteful number, since it uses less digits than its factorization.

111331222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28889.

The product of its digits is 432, while the sum is 22.

Adding to 111331222231 its reverse (132222133111), we get a palindrome (243553355342).

The spelling of 111331222231 in words is "one hundred eleven billion, three hundred thirty-one million, two hundred twenty-two thousand, two hundred thirty-one".