2012003220 has 24 divisors (see below), whose sum is σ = 5633609184. Its totient is φ = 536534176.

The previous prime is 2012003207. The next prime is 2012003221. The reversal of 2012003220 is 223002102.

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

It is a junction number, because it is equal to n+sod(n) for n = 2012003196 and 2012003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012003221) 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, 16766634 + ... + 16766753.

It is an arithmetic number, because the mean of its divisors is an integer number (234733716).

Almost surely, 2^2012003220 is an apocalyptic number.

2012003220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012003220 is an abundant number, since it is smaller than the sum of its proper divisors (3621605964).

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

2012003220 is a wasteful number, since it uses less digits than its factorization.

2012003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33533399 (or 33533397 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2012003220 is about 44855.3588771732. The cubic root of 2012003220 is about 1262.4365425086.

Adding to 2012003220 its reverse (223002102), we get a palindrome (2235005322).

The spelling of 2012003220 in words is "two billion, twelve million, three thousand, two hundred twenty".