220023023221 has 2 divisors, whose sum is σ = 220023023222. Its totient is φ = 220023023220.

The previous prime is 220023023203. The next prime is 220023023281. The reversal of 220023023221 is 122320320022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206742996100 + 13280027121 = 454690^2 + 115239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220023023221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220023023201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110011511610 + 110011511611.

It is an arithmetic number, because the mean of its divisors is an integer number (110011511611).

Almost surely, 2^220023023221 is an apocalyptic number.

It is an amenable number.

220023023221 is a deficient number, since it is larger than the sum of its proper divisors (1).

220023023221 is an equidigital number, since it uses as much as digits as its factorization.

220023023221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 220023023221 its reverse (122320320022), we get a palindrome (342343343243).

The spelling of 220023023221 in words is "two hundred twenty billion, twenty-three million, twenty-three thousand, two hundred twenty-one".