112121120102020 has 48 divisors (see below), whose sum is σ = 237787637169600. Its totient is φ = 44404020483200.

The previous prime is 112121120101979. The next prime is 112121120102021. The reversal of 112121120102020 is 20201021121211.

It is a super-2 number, since 2×112121120102020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112121120101985 and 112121120102003.

It is not an unprimeable number, because it can be changed into a prime (112121120102021) 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 15 ways as a sum of consecutive naturals, for example, 394846851 + ... + 395130709.

It is an arithmetic number, because the mean of its divisors is an integer number (4953909107700).

Almost surely, 2^{112121120102020} is an apocalyptic number.

112121120102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121120102020 is an abundant number, since it is smaller than the sum of its proper divisors (125666517067580).

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

112121120102020 is a wasteful number, since it uses less digits than its factorization.

112121120102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479508 (or 479506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121120102020 its reverse (20201021121211), we get a palindrome (132322141223231).

The spelling of 112121120102020 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred twenty million, one hundred two thousand, twenty".