233201221100 has 72 divisors (see below), whose sum is σ = 511690583040. Its totient is φ = 92241745920.

The previous prime is 233201221087. The next prime is 233201221129. The reversal of 233201221100 is 1122102332.

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, 12396902 + ... + 12415698.

Almost surely, 2^233201221100 is an apocalyptic number.

233201221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233201221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255845291520).

233201221100 is an abundant number, since it is smaller than the sum of its proper divisors (278489361940).

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

233201221100 is a wasteful number, since it uses less digits than its factorization.

233201221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187 (or 20180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 233201221100 its reverse (1122102332), we get a palindrome (234323323432).

The spelling of 233201221100 in words is "two hundred thirty-three billion, two hundred one million, two hundred twenty-one thousand, one hundred".