2112039820 has 24 divisors (see below), whose sum is σ = 4838491728. Its totient is φ = 768014400.

The previous prime is 2112039767. The next prime is 2112039821. The reversal of 2112039820 is 289302112.

It is not an unprimeable number, because it can be changed into a prime (2112039821) 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, 4799871 + ... + 4800310.

It is an arithmetic number, because the mean of its divisors is an integer number (201603822).

Almost surely, 2^2112039820 is an apocalyptic number.

2112039820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112039820 is an abundant number, since it is smaller than the sum of its proper divisors (2726451908).

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

2112039820 is a wasteful number, since it uses less digits than its factorization.

2112039820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600201 (or 9600199 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2112039820 is about 45956.9344060284. The cubic root of 2112039820 is about 1283.0217953326.

The spelling of 2112039820 in words is "two billion, one hundred twelve million, thirty-nine thousand, eight hundred twenty".