20013220033 has 16 divisors (see below), whose sum is σ = 20826813952. Its totient is φ = 19210608000.

The previous prime is 20013220001. The next prime is 20013220061. The reversal of 20013220033 is 33002231002.

It is a cyclic number.

It is not a de Polignac number, because 20013220033 - 2⁵ = 20013220001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013219989 and 20013220016.

It is not an unprimeable number, because it can be changed into a prime (20013220133) 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, 2730013 + ... + 2737333.

It is an arithmetic number, because the mean of its divisors is an integer number (1301675872).

Almost surely, 2^20013220033 is an apocalyptic number.

It is an amenable number.

20013220033 is a deficient number, since it is larger than the sum of its proper divisors (813593919).

20013220033 is a wasteful number, since it uses less digits than its factorization.

20013220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20013220033 its reverse (33002231002), we get a palindrome (53015451035).

The spelling of 20013220033 in words is "twenty billion, thirteen million, two hundred twenty thousand, thirty-three".