112221001020100 has 72 divisors (see below), whose sum is σ = 278330211629120. Its totient is φ = 38472712456320.

The previous prime is 112221001020043. The next prime is 112221001020103. The reversal of 112221001020100 is 1020100122211.

It is a super-3 number, since 3×112221001020100³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (112221001020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2445007 + ... + 15179593.

Almost surely, 2^{112221001020100} is an apocalyptic number.

112221001020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112221001020100 is an abundant number, since it is smaller than the sum of its proper divisors (166109210609020).

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

112221001020100 is a wasteful number, since it uses less digits than its factorization.

112221001020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12747197 (or 12747190 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112221001020100 its reverse (1020100122211), we get a palindrome (113241101142311).

The spelling of 112221001020100 in words is "one hundred twelve trillion, two hundred twenty-one billion, one million, twenty thousand, one hundred".