1112221212 has 24 divisors (see below), whose sum is σ = 2708017536. Its totient is φ = 354621168.

The previous prime is 1112221199. The next prime is 1112221241. The reversal of 1112221212 is 2121222111.

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 = 1112221191 and 1112221200.

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, 2014618 + ... + 2015169.

It is an arithmetic number, because the mean of its divisors is an integer number (112834064).

Almost surely, 2^1112221212 is an apocalyptic number.

1112221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1112221212 is an abundant number, since it is smaller than the sum of its proper divisors (1595796324).

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

1112221212 is a wasteful number, since it uses less digits than its factorization.

1112221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029817 (or 4029815 counting only the distinct ones).

The product of its digits is 32, while the sum is 15.

The square root of 1112221212 is about 33349.9806896496. The cubic root of 1112221212 is about 1036.0889879982.

Adding to 1112221212 its reverse (2121222111), we get a palindrome (3233443323).

The spelling of 1112221212 in words is "one billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twelve".