21222230340103 has 16 divisors (see below), whose sum is σ = 24175082957760. Its totient is φ = 18481337512704.

The previous prime is 21222230340049. The next prime is 21222230340131. The reversal of 21222230340103 is 30104303222212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21222230340103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222230344103) 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, 486124468 + ... + 486168121.

It is an arithmetic number, because the mean of its divisors is an integer number (1510942684860).

Almost surely, 2^{21222230340103} is an apocalyptic number.

21222230340103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21222230340103 is a deficient number, since it is larger than the sum of its proper divisors (2952852617657).

21222230340103 is a wasteful number, since it uses less digits than its factorization.

21222230340103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972292698.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21222230340103 its reverse (30104303222212), we get a palindrome (51326533562315).

The spelling of 21222230340103 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirty million, three hundred forty thousand, one hundred three".