35350220221 has 2 divisors, whose sum is σ = 35350220222. Its totient is φ = 35350220220.

The previous prime is 35350220197. The next prime is 35350220261. The reversal of 35350220221 is 12202205353.

35350220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29012308900 + 6337911321 = 170330^2 + 79611^2 .

It is a cyclic number.

It is not a de Polignac number, because 35350220221 - 2²⁵ = 35316665789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35350220261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17675110110 + 17675110111.

It is an arithmetic number, because the mean of its divisors is an integer number (17675110111).

Almost surely, 2^35350220221 is an apocalyptic number.

It is an amenable number.

35350220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

35350220221 is an equidigital number, since it uses as much as digits as its factorization.

35350220221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 35350220221 its reverse (12202205353), we get a palindrome (47552425574).

The spelling of 35350220221 in words is "thirty-five billion, three hundred fifty million, two hundred twenty thousand, two hundred twenty-one".