20033044220 has 48 divisors (see below), whose sum is σ = 48796930560. Its totient is φ = 6765954624.

The previous prime is 20033044169. The next prime is 20033044253. The reversal of 20033044220 is 2244033002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20033044192 and 20033044201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1058480 + ... + 1077239.

It is an arithmetic number, because the mean of its divisors is an integer number (1016602720).

Almost surely, 2^20033044220 is an apocalyptic number.

20033044220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20033044220 is an abundant number, since it is smaller than the sum of its proper divisors (28763886340).

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

20033044220 is a wasteful number, since it uses less digits than its factorization.

20033044220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135802 (or 2135800 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20033044220 its reverse (2244033002), we get a palindrome (22277077222).

The spelling of 20033044220 in words is "twenty billion, thirty-three million, forty-four thousand, two hundred twenty".