21220213101003 has 24 divisors (see below), whose sum is σ = 35036527059456. Its totient is φ = 12123643518000.

The previous prime is 21220213100993. The next prime is 21220213101019. The reversal of 21220213101003 is 30010131202212.

21220213101003 is a `hidden beast` number, since 212 + 20 + 21 + 310 + 100 + 3 = 666.

It is not a de Polignac number, because 21220213101003 - 2⁹ = 21220213100491 is a prime.

It is a super-3 number, since 3×21220213101003³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21220213101403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30100723 + ... + 30797628.

It is an arithmetic number, because the mean of its divisors is an integer number (1459855294144).

Almost surely, 2^{21220213101003} is an apocalyptic number.

21220213101003 is a deficient number, since it is larger than the sum of its proper divisors (13816313958453).

21220213101003 is a wasteful number, since it uses less digits than its factorization.

21220213101003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60903895 (or 60903892 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21220213101003 its reverse (30010131202212), we get a palindrome (51230344303215).

The spelling of 21220213101003 in words is "twenty-one trillion, two hundred twenty billion, two hundred thirteen million, one hundred one thousand, three".