21223422303 has 16 divisors (see below), whose sum is σ = 28405143936. Its totient is φ = 14095382240.

The previous prime is 21223422301. The next prime is 21223422307. The reversal of 21223422303 is 30322432212.

It is a cyclic number.

It is not a de Polignac number, because 21223422303 - 2¹ = 21223422301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223422301) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1716100 + ... + 1728422.

It is an arithmetic number, because the mean of its divisors is an integer number (1775321496).

Almost surely, 2^21223422303 is an apocalyptic number.

21223422303 is a deficient number, since it is larger than the sum of its proper divisors (7181721633).

21223422303 is a wasteful number, since it uses less digits than its factorization.

21223422303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14454.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21223422303 its reverse (30322432212), we get a palindrome (51545854515).

Subtracting 21223422303 from its reverse (30322432212), we obtain a palindrome (9099009909).

The spelling of 21223422303 in words is "twenty-one billion, two hundred twenty-three million, four hundred twenty-two thousand, three hundred three".