221434010303 has 6 divisors (see below), whose sum is σ = 243394408152. Its totient is φ = 201303645620.

The previous prime is 221434010269. The next prime is 221434010327. The reversal of 221434010303 is 303010434122.

It is not a de Polignac number, because 221434010303 - 2²⁶ = 221366901439 is a prime.

It is a super-2 number, since 2×221434010303² (a number of 23 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 (221434010363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 915016451 + ... + 915016692.

It is an arithmetic number, because the mean of its divisors is an integer number (40565734692).

Almost surely, 2^221434010303 is an apocalyptic number.

221434010303 is a deficient number, since it is larger than the sum of its proper divisors (21960397849).

221434010303 is a wasteful number, since it uses less digits than its factorization.

221434010303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830033165 (or 1830033154 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221434010303 its reverse (303010434122), we get a palindrome (524444444425).

The spelling of 221434010303 in words is "two hundred twenty-one billion, four hundred thirty-four million, ten thousand, three hundred three".