2003220012 has 48 divisors (see below), whose sum is σ = 4768388352. Its totient is φ = 654313920.

The previous prime is 2003219993. The next prime is 2003220017. The reversal of 2003220012 is 2100223002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2003220012.

It is not an unprimeable number, because it can be changed into a prime (2003220017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692433 + ... + 695319.

It is an arithmetic number, because the mean of its divisors is an integer number (99341424).

Almost surely, 2^2003220012 is an apocalyptic number.

It is an amenable number.

2003220012 is an abundant number, since it is smaller than the sum of its proper divisors (2765168340).

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

2003220012 is a wasteful number, since it uses less digits than its factorization.

2003220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038 (or 4036 counting only the distinct ones).

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

The square root of 2003220012 is about 44757.3458998632. The cubic root of 2003220012 is about 1260.5968474951.

Adding to 2003220012 its reverse (2100223002), we get a palindrome (4103443014).

The spelling of 2003220012 in words is "two billion, three million, two hundred twenty thousand, twelve".