1112022222012 has 432 divisors, whose sum is σ = 3164610889440. Its totient is φ = 328944844800.

The previous prime is 1112022221953. The next prime is 1112022222071. The reversal of 1112022222012 is 2102222202111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1112022221953) and next prime (1112022222071).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4326934588 + ... + 4326934844.

It is an arithmetic number, because the mean of its divisors is an integer number (7325488170).

Almost surely, 2^{1112022222012} is an apocalyptic number.

1112022222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112022222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582305444720).

1112022222012 is an abundant number, since it is smaller than the sum of its proper divisors (2052588667428).

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

1112022222012 is a wasteful number, since it uses less digits than its factorization.

1112022222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1112022222012 its reverse (2102222202111), we get a palindrome (3214244424123).

The spelling of 1112022222012 in words is "one trillion, one hundred twelve billion, twenty-two million, two hundred twenty-two thousand, twelve".