20203220012 has 12 divisors (see below), whose sum is σ = 35399235816. Its totient is φ = 10089152640.

The previous prime is 20203220003. The next prime is 20203220017. The reversal of 20203220012 is 21002230202.

It is not an unprimeable number, because it can be changed into a prime (20203220017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110693 + ... + 3117180.

It is an arithmetic number, because the mean of its divisors is an integer number (2949936318).

Almost surely, 2^20203220012 is an apocalyptic number.

It is an amenable number.

20203220012 is a deficient number, since it is larger than the sum of its proper divisors (15196015804).

20203220012 is a wasteful number, since it uses less digits than its factorization.

20203220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6228688 (or 6228686 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20203220012 its reverse (21002230202), we get a palindrome (41205450214).

The spelling of 20203220012 in words is "twenty billion, two hundred three million, two hundred twenty thousand, twelve".