2012102013220 has 24 divisors (see below), whose sum is σ = 4550446092024. Its totient is φ = 742929974016.

The previous prime is 2012102013149. The next prime is 2012102013239. The reversal of 2012102013220 is 223102012102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2166343936 + 2009935669284 = 46544^2 + 1417722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2012102013194 and 2012102013203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869426689 + ... + 3869427208.

It is an arithmetic number, because the mean of its divisors is an integer number (189601920501).

Almost surely, 2^{2012102013220} is an apocalyptic number.

2012102013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012102013220 is an abundant number, since it is smaller than the sum of its proper divisors (2538344078804).

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

2012102013220 is a wasteful number, since it uses less digits than its factorization.

2012102013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738853919 (or 7738853917 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2012102013220 its reverse (223102012102), we get a palindrome (2235204025322).

The spelling of 2012102013220 in words is "two trillion, twelve billion, one hundred two million, thirteen thousand, two hundred twenty".