1112221212212 has 24 divisors (see below), whose sum is σ = 2123358132000. Its totient is φ = 505548732960.

The previous prime is 1112221212211. The next prime is 1112221212259. The reversal of 1112221212212 is 2122121222111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112221212211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6671618 + ... + 6836294.

It is an arithmetic number, because the mean of its divisors is an integer number (88473255500).

Almost surely, 2^{1112221212212} is an apocalyptic number.

It is an amenable number.

1112221212212 is a deficient number, since it is larger than the sum of its proper divisors (1011136919788).

1112221212212 is a wasteful number, since it uses less digits than its factorization.

1112221212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318191 (or 318189 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 1112221212212 its reverse (2122121222111), we get a palindrome (3234342434323).

The spelling of 1112221212212 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twelve".