112111212222 has 12 divisors (see below), whose sum is σ = 242907626520. Its totient is φ = 37370404068.

The previous prime is 112111212211. The next prime is 112111212229. The reversal of 112111212222 is 222212111211.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6228400679 = 112111212222 / (1 + 1 + 2 + 1 + 1 + 1 + 2 + 1 + 2 + 2 + 2 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 112111212195 and 112111212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111212229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3114200322 + ... + 3114200357.

It is an arithmetic number, because the mean of its divisors is an integer number (20242302210).

Almost surely, 2^112111212222 is an apocalyptic number.

112111212222 is an abundant number, since it is smaller than the sum of its proper divisors (130796414298).

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

112111212222 is a wasteful number, since it uses less digits than its factorization.

112111212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6228400687 (or 6228400684 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

Adding to 112111212222 its reverse (222212111211), we get a palindrome (334323323433).

The spelling of 112111212222 in words is "one hundred twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-two".