2012102020 has 12 divisors (see below), whose sum is σ = 4225414284. Its totient is φ = 804840800.

The previous prime is 2012102003. The next prime is 2012102039. The reversal of 2012102020 is 202012102.

It can be written as a sum of positive squares in 2 ways, for example, as 1396367424 + 615734596 = 37368^2 + 24814^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2012101988 and 2012102006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50302531 + ... + 50302570.

It is an arithmetic number, because the mean of its divisors is an integer number (352117857).

Almost surely, 2^2012102020 is an apocalyptic number.

2012102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012102020 is an abundant number, since it is smaller than the sum of its proper divisors (2213312264).

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

2012102020 is a wasteful number, since it uses less digits than its factorization.

2012102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100605110 (or 100605108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2012102020 is about 44856.4601813384. The cubic root of 2012102020 is about 1262.4572062742.

Adding to 2012102020 its reverse (202012102), we get a palindrome (2214114122).

The spelling of 2012102020 in words is "two billion, twelve million, one hundred two thousand, twenty".