221203133232 has 160 divisors (see below), whose sum is σ = 590068661760. Its totient is φ = 71377305600.

The previous prime is 221203133227. The next prime is 221203133267. The reversal of 221203133232 is 232331302122.

221203133232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55202173 + ... + 55206179.

It is an arithmetic number, because the mean of its divisors is an integer number (3687929136).

Almost surely, 2^221203133232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221203133232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295034330880).

221203133232 is an abundant number, since it is smaller than the sum of its proper divisors (368865528528).

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

221203133232 is a wasteful number, since it uses less digits than its factorization.

221203133232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371 (or 4365 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221203133232 its reverse (232331302122), we get a palindrome (453534435354).

The spelling of 221203133232 in words is "two hundred twenty-one billion, two hundred three million, one hundred thirty-three thousand, two hundred thirty-two".