2213420161 has 2 divisors, whose sum is σ = 2213420162. Its totient is φ = 2213420160.

The previous prime is 2213420149. The next prime is 2213420177. The reversal of 2213420161 is 1610243122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1287374400 + 926045761 = 35880^2 + 30431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213420161 - 2⁵ = 2213420129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2213420761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106710080 + 1106710081.

It is an arithmetic number, because the mean of its divisors is an integer number (1106710081).

Almost surely, 2^2213420161 is an apocalyptic number.

It is an amenable number.

2213420161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213420161 is an equidigital number, since it uses as much as digits as its factorization.

2213420161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2213420161 is about 47046.9994898718. Note that the first 3 decimals coincide. The cubic root of 2213420161 is about 1303.2306553175.

Adding to 2213420161 its reverse (1610243122), we get a palindrome (3823663283).

The spelling of 2213420161 in words is "two billion, two hundred thirteen million, four hundred twenty thousand, one hundred sixty-one".