220223304121 has 2 divisors, whose sum is σ = 220223304122. Its totient is φ = 220223304120.

The previous prime is 220223304113. The next prime is 220223304149. The reversal of 220223304121 is 121403322022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184629199225 + 35594104896 = 429685^2 + 188664^2 .

It is a cyclic number.

It is not a de Polignac number, because 220223304121 - 2³ = 220223304113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220223304092 and 220223304101.

It is not a weakly prime, because it can be changed into another prime (220223304151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111652060 + 110111652061.

It is an arithmetic number, because the mean of its divisors is an integer number (110111652061).

Almost surely, 2^220223304121 is an apocalyptic number.

It is an amenable number.

220223304121 is a deficient number, since it is larger than the sum of its proper divisors (1).

220223304121 is an equidigital number, since it uses as much as digits as its factorization.

220223304121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 220223304121 its reverse (121403322022), we get a palindrome (341626626143).

The spelling of 220223304121 in words is "two hundred twenty billion, two hundred twenty-three million, three hundred four thousand, one hundred twenty-one".