111310212222 has 48 divisors (see below), whose sum is σ = 263410842240. Its totient is φ = 33690114000.

The previous prime is 111310212193. The next prime is 111310212263. The reversal of 111310212222 is 222212013111.

111310212222 is a `hidden beast` number, since 111 + 310 + 21 + 2 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111310212195 and 111310212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168904 + ... + 501147.

It is an arithmetic number, because the mean of its divisors is an integer number (5487725880).

Almost surely, 2^111310212222 is an apocalyptic number.

111310212222 is an abundant number, since it is smaller than the sum of its proper divisors (152100630018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111310212222 is a wasteful number, since it uses less digits than its factorization.

111310212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670909 (or 670906 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111310212222 its reverse (222212013111), we get a palindrome (333522225333).

The spelling of 111310212222 in words is "one hundred eleven billion, three hundred ten million, two hundred twelve thousand, two hundred twenty-two".