4220242531 has 2 divisors, whose sum is σ = 4220242532. Its totient is φ = 4220242530.

The previous prime is 4220242519. The next prime is 4220242573. The reversal of 4220242531 is 1352420224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4220242531 is a prime.

It is a super-2 number, since 2×4220242531² = 35620894040922571922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4220242496 and 4220242505.

It is not a weakly prime, because it can be changed into another prime (4220242511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110121265 + 2110121266.

It is an arithmetic number, because the mean of its divisors is an integer number (2110121266).

Almost surely, 2^4220242531 is an apocalyptic number.

4220242531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220242531 is an equidigital number, since it uses as much as digits as its factorization.

4220242531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4220242531 is about 64963.3937768033. The cubic root of 4220242531 is about 1616.0165467939.

Adding to 4220242531 its reverse (1352420224), we get a palindrome (5572662755).

The spelling of 4220242531 in words is "four billion, two hundred twenty million, two hundred forty-two thousand, five hundred thirty-one".