112100221111220 has 48 divisors (see below), whose sum is σ = 241187302414800. Its totient is φ = 43740056878080.

The previous prime is 112100221111213. The next prime is 112100221111273. The reversal of 112100221111220 is 22111122001211.

It can be written as a sum of positive squares in 8 ways, for example, as 13455676567204 + 98644544544016 = 3668198^2 + 9931996^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4318475 + ... + 15583634.

It is an arithmetic number, because the mean of its divisors is an integer number (5024735466975).

Almost surely, 2^{112100221111220} is an apocalyptic number.

112100221111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112100221111220 is an abundant number, since it is smaller than the sum of its proper divisors (129087081303580).

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

112100221111220 is a wasteful number, since it uses less digits than its factorization.

112100221111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19909028 (or 19909026 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112100221111220 its reverse (22111122001211), we get a palindrome (134211343112431).

The spelling of 112100221111220 in words is "one hundred twelve trillion, one hundred billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty".