2112111000020 has 48 divisors (see below), whose sum is σ = 5072489630208. Its totient is φ = 723663310080.

The previous prime is 2112110999983. The next prime is 2112111000031. The reversal of 2112111000020 is 200001112112.

It is a super-2 number, since 2×2112111000020² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112110999965 and 2112111000010.

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, 4886012 + ... + 5300691.

It is an arithmetic number, because the mean of its divisors is an integer number (105676867296).

Almost surely, 2^{2112111000020} is an apocalyptic number.

2112111000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112111000020 is an abundant number, since it is smaller than the sum of its proper divisors (2960378630188).

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

2112111000020 is a wasteful number, since it uses less digits than its factorization.

2112111000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10188200 (or 10188198 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2112111000020 its reverse (200001112112), we get a palindrome (2312112112132).

The spelling of 2112111000020 in words is "two trillion, one hundred twelve billion, one hundred eleven million, twenty", and thus it is an aban number.