1112221122100 has 108 divisors (see below), whose sum is σ = 2653431391744. Its totient is φ = 404359560000.

The previous prime is 1112221122091. The next prime is 1112221122119. The reversal of 1112221122100 is 12211222111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 109996045 + ... + 110006155.

Almost surely, 2^{1112221122100} is an apocalyptic number.

1112221122100 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 1112221122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326715695872).

1112221122100 is an abundant number, since it is smaller than the sum of its proper divisors (1541210269644).

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

1112221122100 is a wasteful number, since it uses less digits than its factorization.

1112221122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19238 (or 19220 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1112221122100 its reverse (12211222111), we get a palindrome (1124432344211).

It can be divided in two parts, 1112221 and 122100, that added together give a palindrome (1234321).

The spelling of 1112221122100 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred".