21222430003 has 2 divisors, whose sum is σ = 21222430004. Its totient is φ = 21222430002.

The previous prime is 21222430001. The next prime is 21222430039. The reversal of 21222430003 is 30003422212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222430003 - 2¹ = 21222430001 is a prime.

Together with 21222430001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (21222430001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611215001 + 10611215002.

It is an arithmetic number, because the mean of its divisors is an integer number (10611215002).

Almost surely, 2^21222430003 is an apocalyptic number.

21222430003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222430003 is an equidigital number, since it uses as much as digits as its factorization.

21222430003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21222430003 its reverse (30003422212), we get a palindrome (51225852215).

The spelling of 21222430003 in words is "twenty-one billion, two hundred twenty-two million, four hundred thirty thousand, three".