2021112000120 has 32 divisors (see below), whose sum is σ = 6063336000720. Its totient is φ = 538963200000.

The previous prime is 2021112000119. The next prime is 2021112000121. The reversal of 2021112000120 is 210002111202.

It is an interprime number because it is at equal distance from previous prime (2021112000119) and next prime (2021112000121).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2021112000096 and 2021112000105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112000121) 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 7 ways as a sum of consecutive naturals, for example, 8421299881 + ... + 8421300120.

Almost surely, 2^{2021112000120} is an apocalyptic number.

2021112000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021112000120 is an abundant number, since it is smaller than the sum of its proper divisors (4042224000600).

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

2021112000120 is a wasteful number, since it uses less digits than its factorization.

2021112000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16842600015 (or 16842600011 counting only the distinct ones).

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

Adding to 2021112000120 its reverse (210002111202), we get a palindrome (2231114111322).

The spelling of 2021112000120 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred twenty", and thus it is an aban number.