221213212021103 has 8 divisors (see below), whose sum is σ = 224009431254000. Its totient is φ = 218420111831488.

The previous prime is 221213212021093. The next prime is 221213212021133. The reversal of 221213212021103 is 301120212312122.

221213212021103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221213212021103 - 2¹⁰ = 221213212020079 is a prime.

It is a super-2 number, since 2×221213212021103² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221213212021133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779618078 + ... + 779901771.

It is an arithmetic number, because the mean of its divisors is an integer number (28001178906750).

Almost surely, 2^{221213212021103} is an apocalyptic number.

221213212021103 is a deficient number, since it is larger than the sum of its proper divisors (2796219232897).

221213212021103 is a wasteful number, since it uses less digits than its factorization.

221213212021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559521641.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 221213212021103 its reverse (301120212312122), we get a palindrome (522333424333225).

The spelling of 221213212021103 in words is "two hundred twenty-one trillion, two hundred thirteen billion, two hundred twelve million, twenty-one thousand, one hundred three".