1112212200 has 192 divisors, whose sum is σ = 3849753600. Its totient is φ = 263289600.

The previous prime is 1112212181. The next prime is 1112212223. The reversal of 1112212200 is 22122111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 281841 + ... + 285759.

It is an arithmetic number, because the mean of its divisors is an integer number (20050800).

Almost surely, 2^1112212200 is an apocalyptic number.

1112212200 is a gapful number since it is divisible by the number (10) 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 1112212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924876800).

1112212200 is an abundant number, since it is smaller than the sum of its proper divisors (2737541400).

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

1112212200 is a wasteful number, since it uses less digits than its factorization.

1112212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1112212200 is about 33349.8455768539. The cubic root of 1112212200 is about 1036.0861896163.

Adding to 1112212200 its reverse (22122111), we get a palindrome (1134334311).

It can be divided in two parts, 1112 and 212200, that added together give a palindrome (213312).

The spelling of 1112212200 in words is "one billion, one hundred twelve million, two hundred twelve thousand, two hundred".