20333303220 has 96 divisors (see below), whose sum is σ = 60512272128. Its totient is φ = 5083789312.

The previous prime is 20333303201. The next prime is 20333303227. The reversal of 20333303220 is 2230333302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333303227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230362 + ... + 306158.

It is an arithmetic number, because the mean of its divisors is an integer number (630336168).

Almost surely, 2^20333303220 is an apocalyptic number.

20333303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20333303220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30256136064).

20333303220 is an abundant number, since it is smaller than the sum of its proper divisors (40178968908).

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

20333303220 is a wasteful number, since it uses less digits than its factorization.

20333303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76089 (or 76087 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 21.

Adding to 20333303220 its reverse (2230333302), we get a palindrome (22563636522).

The spelling of 20333303220 in words is "twenty billion, three hundred thirty-three million, three hundred three thousand, two hundred twenty".