2102000021112 has 32 divisors (see below), whose sum is σ = 5255236339200. Its totient is φ = 700635168864.

The previous prime is 2102000021111. The next prime is 2102000021119. The reversal of 2102000021112 is 2111200002012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102000021111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421062 + ... + 2494677.

It is an arithmetic number, because the mean of its divisors is an integer number (164226135600).

Almost surely, 2^{2102000021112} is an apocalyptic number.

It is an amenable number.

2102000021112 is an abundant number, since it is smaller than the sum of its proper divisors (3153236318088).

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

2102000021112 is a wasteful number, since it uses less digits than its factorization.

2102000021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938115 (or 3938111 counting only the distinct ones).

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

Adding to 2102000021112 its reverse (2111200002012), we get a palindrome (4213200023124).

The spelling of 2102000021112 in words is "two trillion, one hundred two billion, twenty-one thousand, one hundred twelve".