233221010220 has 72 divisors (see below), whose sum is σ = 771749531280. Its totient is φ = 56538426240.

The previous prime is 233221010219. The next prime is 233221010227. The reversal of 233221010220 is 22010122332.

233221010220 is a `hidden beast` number, since 2 + 332 + 210 + 102 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 233221010193 and 233221010202.

It is not an unprimeable number, because it can be changed into a prime (233221010227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58892215 + ... + 58896174.

It is an arithmetic number, because the mean of its divisors is an integer number (10718743490).

Almost surely, 2^233221010220 is an apocalyptic number.

233221010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233221010220 is an abundant number, since it is smaller than the sum of its proper divisors (538528521060).

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

233221010220 is a wasteful number, since it uses less digits than its factorization.

233221010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117788415 (or 117788410 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 233221010220 its reverse (22010122332), we get a palindrome (255231132552).

The spelling of 233221010220 in words is "two hundred thirty-three billion, two hundred twenty-one million, ten thousand, two hundred twenty".