21022232003 has 8 divisors (see below), whose sum is σ = 21381796800. Its totient is φ = 20662775848.

The previous prime is 21022231969. The next prime is 21022232009. The reversal of 21022232003 is 30023222012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21022232003 - 2¹⁰ = 21022230979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022232009) by changing a digit.

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, 427628 + ... + 474246.

It is an arithmetic number, because the mean of its divisors is an integer number (2672724600).

Almost surely, 2^21022232003 is an apocalyptic number.

21022232003 is a deficient number, since it is larger than the sum of its proper divisors (359564797).

21022232003 is an equidigital number, since it uses as much as digits as its factorization.

21022232003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54321.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21022232003 its reverse (30023222012), we get a palindrome (51045454015).

Subtracting 21022232003 from its reverse (30023222012), we obtain a palindrome (9000990009).

The spelling of 21022232003 in words is "twenty-one billion, twenty-two million, two hundred thirty-two thousand, three".