2217021423 has 8 divisors (see below), whose sum is σ = 2959555200. Its totient is φ = 1476250968.

The previous prime is 2217021307. The next prime is 2217021437. The reversal of 2217021423 is 3241207122.

2217021423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2217021423 - 2¹⁶ = 2216955887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2217021393 and 2217021402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217021473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437893 + ... + 442926.

It is an arithmetic number, because the mean of its divisors is an integer number (369944400).

Almost surely, 2^2217021423 is an apocalyptic number.

2217021423 is a deficient number, since it is larger than the sum of its proper divisors (742533777).

2217021423 is an equidigital number, since it uses as much as digits as its factorization.

2217021423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881661.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2217021423 is about 47085.2569601144. The cubic root of 2217021423 is about 1303.9370631470.

Adding to 2217021423 its reverse (3241207122), we get a palindrome (5458228545).

The spelling of 2217021423 in words is "two billion, two hundred seventeen million, twenty-one thousand, four hundred twenty-three".