220422224221 has 2 divisors, whose sum is σ = 220422224222. Its totient is φ = 220422224220.

The previous prime is 220422224203. The next prime is 220422224227. The reversal of 220422224221 is 122422224022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181539905625 + 38882318596 = 426075^2 + 197186^2 .

It is a cyclic number.

It is not a de Polignac number, because 220422224221 - 2¹⁵ = 220422191453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220422224227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110211112110 + 110211112111.

It is an arithmetic number, because the mean of its divisors is an integer number (110211112111).

Almost surely, 2^220422224221 is an apocalyptic number.

It is an amenable number.

220422224221 is a deficient number, since it is larger than the sum of its proper divisors (1).

220422224221 is an equidigital number, since it uses as much as digits as its factorization.

220422224221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 220422224221 its reverse (122422224022), we get a palindrome (342844448243).

The spelling of 220422224221 in words is "two hundred twenty billion, four hundred twenty-two million, two hundred twenty-four thousand, two hundred twenty-one".