233021302220 has 72 divisors (see below), whose sum is σ = 574764581664. Its totient is φ = 79117323264.

The previous prime is 233021302219. The next prime is 233021302247. The reversal of 233021302220 is 22203120332.

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 = 233021302192 and 233021302201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1053317 + ... + 1255196.

It is an arithmetic number, because the mean of its divisors is an integer number (7982841412).

Almost surely, 2^233021302220 is an apocalyptic number.

233021302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233021302220 is an abundant number, since it is smaller than the sum of its proper divisors (341743279444).

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

233021302220 is a wasteful number, since it uses less digits than its factorization.

233021302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308639 (or 2308630 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 233021302220 its reverse (22203120332), we get a palindrome (255224422552).

The spelling of 233021302220 in words is "two hundred thirty-three billion, twenty-one million, three hundred two thousand, two hundred twenty".