233220220 has 12 divisors (see below), whose sum is σ = 489762504. Its totient is φ = 93288080.

The previous prime is 233220209. The next prime is 233220227. The reversal of 233220220 is 22022332.

It is a junction number, because it is equal to n+sod(n) for n = 233220194 and 233220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233220227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5830486 + ... + 5830525.

It is an arithmetic number, because the mean of its divisors is an integer number (40813542).

Almost surely, 2^233220220 is an apocalyptic number.

233220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233220220 is an abundant number, since it is smaller than the sum of its proper divisors (256542284).

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

233220220 is a wasteful number, since it uses less digits than its factorization.

233220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661020 (or 11661018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 233220220 is about 15271.5493647501. The cubic root of 233220220 is about 615.5387527917.

Adding to 233220220 its reverse (22022332), we get a palindrome (255242552).

The spelling of 233220220 in words is "two hundred thirty-three million, two hundred twenty thousand, two hundred twenty".