221034224243 has 16 divisors (see below), whose sum is σ = 254170076160. Its totient is φ = 188288676576.

The previous prime is 221034224221. The next prime is 221034224251. The reversal of 221034224243 is 342422430122.

It is not a de Polignac number, because 221034224243 - 2¹⁸ = 221033962099 is a prime.

It is a super-2 number, since 2×221034224243² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221034224273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7828730 + ... + 7856912.

It is an arithmetic number, because the mean of its divisors is an integer number (15885629760).

Almost surely, 2^221034224243 is an apocalyptic number.

221034224243 is a deficient number, since it is larger than the sum of its proper divisors (33135851917).

221034224243 is a wasteful number, since it uses less digits than its factorization.

221034224243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35066.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 221034224243 its reverse (342422430122), we get a palindrome (563456654365).

The spelling of 221034224243 in words is "two hundred twenty-one billion, thirty-four million, two hundred twenty-four thousand, two hundred forty-three".