4220216423 has 4 divisors (see below), whose sum is σ = 4271062488. Its totient is φ = 4169370360.

The previous prime is 4220216393. The next prime is 4220216443. The reversal of 4220216423 is 3246120224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4220216423 - 2²⁶ = 4153107559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4220216392 and 4220216401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220216443) 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 in 3 ways as a sum of consecutive naturals, for example, 25422908 + ... + 25423073.

It is an arithmetic number, because the mean of its divisors is an integer number (1067765622).

Almost surely, 2^4220216423 is an apocalyptic number.

4220216423 is a deficient number, since it is larger than the sum of its proper divisors (50846065).

4220216423 is an equidigital number, since it uses as much as digits as its factorization.

4220216423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50846064.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 4220216423 is about 64963.1928325571. The cubic root of 4220216423 is about 1616.0132143593.

Adding to 4220216423 its reverse (3246120224), we get a palindrome (7466336647).

The spelling of 4220216423 in words is "four billion, two hundred twenty million, two hundred sixteen thousand, four hundred twenty-three".