112001222100 has 36 divisors (see below), whose sum is σ = 324056870144. Its totient is φ = 29866992480.

The previous prime is 112001222089. The next prime is 112001222101. The reversal of 112001222100 is 1222100211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112001222101) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 186668404 + ... + 186669003.

Almost surely, 2^112001222100 is an apocalyptic number.

112001222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112001222100 is an abundant number, since it is smaller than the sum of its proper divisors (212055648044).

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

112001222100 is a wasteful number, since it uses less digits than its factorization.

112001222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373337424 (or 373337417 counting only the distinct ones).

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

Adding to 112001222100 its reverse (1222100211), we get a palindrome (113223322311).

The spelling of 112001222100 in words is "one hundred twelve billion, one million, two hundred twenty-two thousand, one hundred".