21202213221103 has 2 divisors, whose sum is σ = 21202213221104. Its totient is φ = 21202213221102.

The previous prime is 21202213221061. The next prime is 21202213221109. The reversal of 21202213221103 is 30112231220212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202213221103 - 2¹³ = 21202213212911 is a prime.

It is a super-3 number, since 3×21202213221103³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202213221109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601106610551 + 10601106610552.

It is an arithmetic number, because the mean of its divisors is an integer number (10601106610552).

Almost surely, 2^{21202213221103} is an apocalyptic number.

21202213221103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202213221103 is an equidigital number, since it uses as much as digits as its factorization.

21202213221103 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 22.

Adding to 21202213221103 its reverse (30112231220212), we get a palindrome (51314444441315).

The spelling of 21202213221103 in words is "twenty-one trillion, two hundred two billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred three".