112121112102021 has 48 divisors (see below), whose sum is σ = 191631023071488. Its totient is φ = 62395123430400.

The previous prime is 112121112102007. The next prime is 112121112102031. The reversal of 112121112102021 is 120201211121211.

It is a happy number.

It is not a de Polignac number, because 112121112102021 - 2¹⁴ = 112121112085637 is a prime.

It is a super-2 number, since 2×112121112102021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112121112101985 and 112121112102003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121112102031) 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 47 ways as a sum of consecutive naturals, for example, 812367501 + ... + 812505506.

It is an arithmetic number, because the mean of its divisors is an integer number (3992312980656).

Almost surely, 2^{112121112102021} is an apocalyptic number.

112121112102021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112121112102021 is a deficient number, since it is larger than the sum of its proper divisors (79509910969467).

112121112102021 is a wasteful number, since it uses less digits than its factorization.

112121112102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624873082 (or 1624873079 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 112121112102021 its reverse (120201211121211), we get a palindrome (232322323223232).

The spelling of 112121112102021 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, one hundred two thousand, twenty-one".