112121011100020 has 48 divisors (see below), whose sum is σ = 258960999806208. Its totient is φ = 40517707443840.

The previous prime is 112121011100009. The next prime is 112121011100039. The reversal of 112121011100020 is 20001110121211.

It is a happy number.

It is a super-2 number, since 2×112121011100020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4587590526 + ... + 4587614965.

It is an arithmetic number, because the mean of its divisors is an integer number (5395020829296).

Almost surely, 2^{112121011100020} is an apocalyptic number.

112121011100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121011100020 is an abundant number, since it is smaller than the sum of its proper divisors (146839988706188).

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

112121011100020 is a wasteful number, since it uses less digits than its factorization.

112121011100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175205560 (or 9175205558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112121011100020 its reverse (20001110121211), we get a palindrome (132122121221231).

The spelling of 112121011100020 in words is "one hundred twelve trillion, one hundred twenty-one billion, eleven million, one hundred thousand, twenty".