4025514342221 has 2 divisors, whose sum is σ = 4025514342222. Its totient is φ = 4025514342220.

The previous prime is 4025514342209. The next prime is 4025514342259. The reversal of 4025514342221 is 1222434155204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2101021260100 + 1924493082121 = 1449490^2 + 1387261^2 .

It is a cyclic number.

It is not a de Polignac number, because 4025514342221 - 2¹⁰ = 4025514341197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4025514342121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012757171110 + 2012757171111.

It is an arithmetic number, because the mean of its divisors is an integer number (2012757171111).

Almost surely, 2^{4025514342221} is an apocalyptic number.

It is an amenable number.

4025514342221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025514342221 is an equidigital number, since it uses as much as digits as its factorization.

4025514342221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 4025514342221 its reverse (1222434155204), we get a palindrome (5247948497425).

The spelling of 4025514342221 in words is "four trillion, twenty-five billion, five hundred fourteen million, three hundred forty-two thousand, two hundred twenty-one".