112001021220020 has 12 divisors (see below), whose sum is σ = 235202144562084. Its totient is φ = 44800408488000.

The previous prime is 112001021220007. The next prime is 112001021220139. The reversal of 112001021220020 is 20022120100211.

It can be written as a sum of positive squares in 2 ways, for example, as 20522240901904 + 91478780318116 = 4530148^2 + 9564454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112001021219977 and 112001021220004.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2800025530481 + ... + 2800025530520.

It is an arithmetic number, because the mean of its divisors is an integer number (19600178713507).

Almost surely, 2^{112001021220020} is an apocalyptic number.

112001021220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112001021220020 is an abundant number, since it is smaller than the sum of its proper divisors (123201123342064).

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

112001021220020 is a wasteful number, since it uses less digits than its factorization.

112001021220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600051061010 (or 5600051061008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 112001021220020 its reverse (20022120100211), we get a palindrome (132023141320231).

The spelling of 112001021220020 in words is "one hundred twelve trillion, one billion, twenty-one million, two hundred twenty thousand, twenty".