4025221771 has 2 divisors, whose sum is σ = 4025221772. Its totient is φ = 4025221770.

The previous prime is 4025221709. The next prime is 4025221777. The reversal of 4025221771 is 1771225204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4025221771 - 2²⁷ = 3891004043 is a prime.

It is not a weakly prime, because it can be changed into another prime (4025221777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012610885 + 2012610886.

It is an arithmetic number, because the mean of its divisors is an integer number (2012610886).

Almost surely, 2^4025221771 is an apocalyptic number.

4025221771 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025221771 is an equidigital number, since it uses as much as digits as its factorization.

4025221771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 4025221771 is about 63444.6354785020. The cubic root of 4025221771 is about 1590.7304860424.

Adding to 4025221771 its reverse (1771225204), we get a palindrome (5796446975).

The spelling of 4025221771 in words is "four billion, twenty-five million, two hundred twenty-one thousand, seven hundred seventy-one".