221200232 has 32 divisors (see below), whose sum is σ = 459220320. Its totient is φ = 99042240.

The previous prime is 221200211. The next prime is 221200249. The reversal of 221200232 is 232002122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12863 + ... + 24654.

It is an arithmetic number, because the mean of its divisors is an integer number (14350635).

Almost surely, 2^221200232 is an apocalyptic number.

221200232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221200232 is an abundant number, since it is smaller than the sum of its proper divisors (238020088).

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

221200232 is a wasteful number, since it uses less digits than its factorization.

221200232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37601 (or 37597 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 221200232 is about 14872.8017535366. The cubic root of 221200232 is about 604.7768974523.

Adding to 221200232 its reverse (232002122), we get a palindrome (453202354).

The spelling of 221200232 in words is "two hundred twenty-one million, two hundred thousand, two hundred thirty-two".