4221420527 has 2 divisors, whose sum is σ = 4221420528. Its totient is φ = 4221420526.

The previous prime is 4221420493. The next prime is 4221420563. The reversal of 4221420527 is 7250241224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221420527 - 2²⁰ = 4220371951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4221420527.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221420227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110710263 + 2110710264.

It is an arithmetic number, because the mean of its divisors is an integer number (2110710264).

Almost surely, 2^4221420527 is an apocalyptic number.

4221420527 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221420527 is an equidigital number, since it uses as much as digits as its factorization.

4221420527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 4221420527 is about 64972.4597579621. The cubic root of 4221420527 is about 1616.1668923344.

The spelling of 4221420527 in words is "four billion, two hundred twenty-one million, four hundred twenty thousand, five hundred twenty-seven".