221201332 has 24 divisors (see below), whose sum is σ = 423652320. Its totient is φ = 100222560.

The previous prime is 221201329. The next prime is 221201333. The reversal of 221201332 is 233102122.

221201332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6019 + ... + 21877.

It is an arithmetic number, because the mean of its divisors is an integer number (17652180).

Almost surely, 2^221201332 is an apocalyptic number.

221201332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221201332 is a deficient number, since it is larger than the sum of its proper divisors (202450988).

221201332 is a wasteful number, since it uses less digits than its factorization.

221201332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191 (or 16189 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221201332 is about 14872.8387337455. The cubic root of 221201332 is about 604.7778999429. Note that the first 3 decimals are identical.

Adding to 221201332 its reverse (233102122), we get a palindrome (454303454).

The spelling of 221201332 in words is "two hundred twenty-one million, two hundred one thousand, three hundred thirty-two".