223201310202221 has 4 divisors (see below), whose sum is σ = 240370641756252. Its totient is φ = 206031978648192.

The previous prime is 223201310202209. The next prime is 223201310202271. The reversal of 223201310202221 is 122202013102322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87082677876100 + 136118632326121 = 9331810^2 + 11666989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223201310202221 is a prime.

It is a super-3 number, since 3×223201310202221³ (a number of 44 digits) contains 333 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 (223201310202271) 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 3 ways as a sum of consecutive naturals, for example, 8584665776996 + ... + 8584665777021.

It is an arithmetic number, because the mean of its divisors is an integer number (60092660439063).

Almost surely, 2^{223201310202221} is an apocalyptic number.

It is an amenable number.

223201310202221 is a deficient number, since it is larger than the sum of its proper divisors (17169331554031).

223201310202221 is a wasteful number, since it uses less digits than its factorization.

223201310202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17169331554030.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 223201310202221 its reverse (122202013102322), we get a palindrome (345403323304543).

The spelling of 223201310202221 in words is "two hundred twenty-three trillion, two hundred one billion, three hundred ten million, two hundred two thousand, two hundred twenty-one".