221132003 has 4 divisors (see below), whose sum is σ = 223796328. Its totient is φ = 218467680.

The previous prime is 221131997. The next prime is 221132029. The reversal of 221132003 is 300231122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221132003 - 2¹⁴ = 221115619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221132033) 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, 1332038 + ... + 1332203.

It is an arithmetic number, because the mean of its divisors is an integer number (55949082).

Almost surely, 2^221132003 is an apocalyptic number.

221132003 is a deficient number, since it is larger than the sum of its proper divisors (2664325).

221132003 is an equidigital number, since it uses as much as digits as its factorization.

221132003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664324.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 221132003 is about 14870.5078258949. The cubic root of 221132003 is about 604.7147101061.

Adding to 221132003 its reverse (300231122), we get a palindrome (521363125).

The spelling of 221132003 in words is "two hundred twenty-one million, one hundred thirty-two thousand, three".