111221034231 has 8 divisors (see below), whose sum is σ = 148299725680. Its totient is φ = 74144849472.

The previous prime is 111221034227. The next prime is 111221034257. The reversal of 111221034231 is 132430122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111221034231 - 2² = 111221034227 is a prime.

It is a super-2 number, since 2×111221034231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111221034198 and 111221034207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221084231) 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, 520576 + ... + 702453.

It is an arithmetic number, because the mean of its divisors is an integer number (18537465710).

Almost surely, 2^111221034231 is an apocalyptic number.

111221034231 is a deficient number, since it is larger than the sum of its proper divisors (37078691449).

111221034231 is a wasteful number, since it uses less digits than its factorization.

111221034231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253345.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111221034231 its reverse (132430122111), we get a palindrome (243651156342).

The spelling of 111221034231 in words is "one hundred eleven billion, two hundred twenty-one million, thirty-four thousand, two hundred thirty-one".