4221003427 has 2 divisors, whose sum is σ = 4221003428. Its totient is φ = 4221003426.

The previous prime is 4221003421. The next prime is 4221003443. The reversal of 4221003427 is 7243001224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221003427 - 2³ = 4221003419 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221003421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110501713 + 2110501714.

It is an arithmetic number, because the mean of its divisors is an integer number (2110501714).

Almost surely, 2^4221003427 is an apocalyptic number.

4221003427 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221003427 is an equidigital number, since it uses as much as digits as its factorization.

4221003427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 4221003427 is about 64969.2498571440. The cubic root of 4221003427 is about 1616.1136617998.

The spelling of 4221003427 in words is "four billion, two hundred twenty-one million, three thousand, four hundred twenty-seven".