220230323221 has 2 divisors, whose sum is σ = 220230323222. Its totient is φ = 220230323220.

The previous prime is 220230323219. The next prime is 220230323227. The reversal of 220230323221 is 122323032022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171085640625 + 49144682596 = 413625^2 + 221686^2 .

It is a cyclic number.

It is not a de Polignac number, because 220230323221 - 2¹ = 220230323219 is a prime.

It is a super-2 number, since 2×220230323221² (a number of 23 digits) contains 22 as substring.

Together with 220230323219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 220230323192 and 220230323201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220230323227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115161610 + 110115161611.

It is an arithmetic number, because the mean of its divisors is an integer number (110115161611).

Almost surely, 2^220230323221 is an apocalyptic number.

It is an amenable number.

220230323221 is a deficient number, since it is larger than the sum of its proper divisors (1).

220230323221 is an equidigital number, since it uses as much as digits as its factorization.

220230323221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 220230323221 its reverse (122323032022), we get a palindrome (342553355243).

The spelling of 220230323221 in words is "two hundred twenty billion, two hundred thirty million, three hundred twenty-three thousand, two hundred twenty-one".