220303300221 has 12 divisors (see below), whose sum is σ = 318703200348. Its totient is φ = 146643948864.

The previous prime is 220303300159. The next prime is 220303300289. The reversal of 220303300221 is 122003303022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98075448900 + 122227851321 = 313170^2 + 349611^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220303300221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220303300194 and 220303300203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220303300291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18736960 + ... + 18748713.

It is an arithmetic number, because the mean of its divisors is an integer number (26558600029).

Almost surely, 2^220303300221 is an apocalyptic number.

It is an amenable number.

220303300221 is a deficient number, since it is larger than the sum of its proper divisors (98399900127).

220303300221 is a wasteful number, since it uses less digits than its factorization.

220303300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37486332 (or 37486329 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 220303300221 its reverse (122003303022), we get a palindrome (342306603243).

The spelling of 220303300221 in words is "two hundred twenty billion, three hundred three million, three hundred thousand, two hundred twenty-one".