111312031222 has 16 divisors (see below), whose sum is σ = 192277274112. Its totient is φ = 47340993960.

The previous prime is 111312031157. The next prime is 111312031253. The reversal of 111312031222 is 222130213111.

111312031222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×111312031222³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111312031222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30344958 + ... + 30348625.

It is an arithmetic number, because the mean of its divisors is an integer number (12017329632).

Almost surely, 2^111312031222 is an apocalyptic number.

111312031222 is a deficient number, since it is larger than the sum of its proper divisors (80965242890).

111312031222 is a wasteful number, since it uses less digits than its factorization.

111312031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60693723.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111312031222 its reverse (222130213111), we get a palindrome (333442244333).

The spelling of 111312031222 in words is "one hundred eleven billion, three hundred twelve million, thirty-one thousand, two hundred twenty-two".