112012020021 has 96 divisors (see below), whose sum is σ = 178085819520. Its totient is φ = 62021836800.

The previous prime is 112012020019. The next prime is 112012020023. The reversal of 112012020021 is 120020210211.

It is an interprime number because it is at equal distance from previous prime (112012020019) and next prime (112012020023).

It is not a de Polignac number, because 112012020021 - 2¹ = 112012020019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112012019979 and 112012020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49105401 + ... + 49107681.

It is an arithmetic number, because the mean of its divisors is an integer number (1855060620).

Almost surely, 2^112012020021 is an apocalyptic number.

112012020021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112012020021 is a deficient number, since it is larger than the sum of its proper divisors (66073799499).

112012020021 is a wasteful number, since it uses less digits than its factorization.

112012020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112012020021 its reverse (120020210211), we get a palindrome (232032230232).

The spelling of 112012020021 in words is "one hundred twelve billion, twelve million, twenty thousand, twenty-one".