2112104700 has 144 divisors (see below), whose sum is σ = 6812064000. Its totient is φ = 561401280.

The previous prime is 2112104699. The next prime is 2112104719. The reversal of 2112104700 is 74012112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 968211 + ... + 970389.

It is an arithmetic number, because the mean of its divisors is an integer number (47306000).

Almost surely, 2^2112104700 is an apocalyptic number.

2112104700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112104700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3406032000).

2112104700 is an abundant number, since it is smaller than the sum of its proper divisors (4699959300).

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

2112104700 is a wasteful number, since it uses less digits than its factorization.

2112104700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 2112104700 is about 45957.6402788481. The cubic root of 2112104700 is about 1283.0349329639.

Adding to 2112104700 its reverse (74012112), we get a palindrome (2186116812).

The spelling of 2112104700 in words is "two billion, one hundred twelve million, one hundred four thousand, seven hundred".