21223332103 has 2 divisors, whose sum is σ = 21223332104. Its totient is φ = 21223332102.

The previous prime is 21223332089. The next prime is 21223332113. The reversal of 21223332103 is 30123332212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21223332103 - 2⁵ = 21223332071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21223332113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611666051 + 10611666052.

It is an arithmetic number, because the mean of its divisors is an integer number (10611666052).

Almost surely, 2^21223332103 is an apocalyptic number.

21223332103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223332103 is an equidigital number, since it uses as much as digits as its factorization.

21223332103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21223332103 its reverse (30123332212), we get a palindrome (51346664315).

The spelling of 21223332103 in words is "twenty-one billion, two hundred twenty-three million, three hundred thirty-two thousand, one hundred three".