111222010231 has 4 divisors (see below), whose sum is σ = 111223950552. Its totient is φ = 111220069912.

The previous prime is 111222010183. The next prime is 111222010253. The reversal of 111222010231 is 132010222111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111222010231 - 2¹⁵ = 111221977463 is a prime.

It is a super-2 number, since 2×111222010231² (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 (111222011231) 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, 881476 + ... + 999721.

It is an arithmetic number, because the mean of its divisors is an integer number (27805987638).

Almost surely, 2^111222010231 is an apocalyptic number.

111222010231 is a deficient number, since it is larger than the sum of its proper divisors (1940321).

111222010231 is an equidigital number, since it uses as much as digits as its factorization.

111222010231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940320.

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

Adding to 111222010231 its reverse (132010222111), we get a palindrome (243232232342).

The spelling of 111222010231 in words is "one hundred eleven billion, two hundred twenty-two million, ten thousand, two hundred thirty-one".